fidl_fuchsia_audio_device/

fidl_fuchsia_audio_device.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

/// Common aliases, consts and types used by more than one of the fuchsia.audio.device protocols.
pub type ClockDomain = u32;

pub type ElementId = u64;

pub type TokenId = u64;

pub type TopologyId = u64;

/// For devices with Codec or Dai drivers, there is only one DAI_INTERCONNECT entity. When a method
/// requires us to address the interconnect by ID, we use element_id 1. Codec and Dai drivers that
/// implement signalprocessing should not assign this ID to other elements.
pub const DEFAULT_DAI_INTERCONNECT_ELEMENT_ID: u64 = 1;

/// For devices with Dai or StreamConfig drivers, there is only one RING_BUFFER entity. When a
/// method requires us to address the RingBuffer by ID, we use element_id 0. Dai and StreamConfig
/// drivers that implement signalprocessing should not assign this ID to other elements.
pub const DEFAULT_RING_BUFFER_ELEMENT_ID: u64 = 0;

/// Maximum number of channels that a device can report as supported.
pub const MAX_COUNT_CHANNELS: u32 =
    fidl_fuchsia_hardware_audio::MAX_COUNT_CHANNELS_IN_RING_BUFFER as u32;

/// Maximum number of `ChannelSet`s that a device can report in a single PcmFormatSet.
pub const MAX_COUNT_CHANNEL_SETS: u32 = fidl_fuchsia_hardware_audio::MAX_COUNT_CHANNEL_SETS as u32;

pub const MAX_COUNT_DAI_FORMATS: u32 = fidl_fuchsia_hardware_audio::MAX_COUNT_DAI_FORMATS as u32;

/// Maximum number of audio devices in the system at any time.
pub const MAX_COUNT_DEVICES: u32 = 256;

/// Maximum number of `PcmFormatSet`s that a device can report as supported.
pub const MAX_COUNT_FORMATS: u32 = fidl_fuchsia_hardware_audio::MAX_COUNT_FORMATS as u32;

/// Maximum number of processing elements supported by a single device.
pub const MAX_COUNT_PROCESSING_ELEMENTS: u32 =
    fidl_fuchsia_hardware_audio_signalprocessing::MAX_COUNT_PROCESSING_ELEMENTS as u32;

/// Maximum number of frame rates that a device can report in a PcmFormatSet.
pub const MAX_COUNT_RATES: u32 = fidl_fuchsia_hardware_audio::MAX_COUNT_SUPPORTED_RATES as u32;

/// Maximum number of distinct sample formats that a single PcmFormatSet can contain.
pub const MAX_COUNT_SAMPLE_TYPES: u32 = 32;

/// Maximum length of the strings for device, manufacturer and product names.
pub const MAX_STRING_SIZE: u32 = fidl_fuchsia_hardware_audio::MAX_UI_STRING_SIZE as u32;

/// The length of the device's unique ID, in bytes.
pub const UNIQUE_INSTANCE_ID_SIZE: u32 = fidl_fuchsia_hardware_audio::UNIQUE_ID_SIZE as u32;

/// Errors returned by `Control/CodecStart`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlCodecStartError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `CodecStart` call has not yet completed.
    AlreadyPending,
    /// `SetDaiFormat` was not called before making this call.
    DaiFormatNotSet,
    /// The device was already started when this call was made.
    AlreadyStarted,
    /// The driver returned some other error. This call may be retried.
    Other,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlCodecStartError` member.
#[macro_export]
macro_rules! ControlCodecStartErrorUnknown {
    () => {
        _
    };
}

impl ControlCodecStartError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            4 => Some(Self::DaiFormatNotSet),
            5 => Some(Self::AlreadyStarted),
            6 => Some(Self::Other),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            4 => Self::DaiFormatNotSet,
            5 => Self::AlreadyStarted,
            6 => Self::Other,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::DaiFormatNotSet => 4,
            Self::AlreadyStarted => 5,
            Self::Other => 6,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Control/CodecStop`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlCodecStopError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `CodecStop` call has not yet completed.
    AlreadyPending,
    /// `SetDaiFormat` was not called before making this call.
    DaiFormatNotSet,
    /// The device was already stopped when this call was made.
    AlreadyStopped,
    /// The driver returned some other error. This call may be retried.
    Other,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlCodecStopError` member.
#[macro_export]
macro_rules! ControlCodecStopErrorUnknown {
    () => {
        _
    };
}

impl ControlCodecStopError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            4 => Some(Self::DaiFormatNotSet),
            5 => Some(Self::AlreadyStopped),
            6 => Some(Self::Other),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            4 => Self::DaiFormatNotSet,
            5 => Self::AlreadyStopped,
            6 => Self::Other,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::DaiFormatNotSet => 4,
            Self::AlreadyStopped => 5,
            Self::Other => 6,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Control/CreateRingBuffer`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlCreateRingBufferError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `CreateRingBuffer` call has not yet completed.
    AlreadyPending,
    /// The required `element_id` is missing or does not refer to a `RING_BUFFER` element.
    InvalidElementId,
    /// The required `options` is missing.
    InvalidOptions,
    /// The required `options.format` is missing.
    InvalidFormat,
    /// The required `options.ring_buffer_min_bytes` is missing.
    InvalidMinBytes,
    /// The required `ring_buffer_server` is missing.
    InvalidRingBuffer,
    /// An active `RingBuffer` instance already exists for this `Control`.
    AlreadyAllocated,
    /// The device does not support the specified format.
    FormatMismatch,
    /// The device cannot create a ring buffer with the specified options.
    BadRingBufferOption,
    /// The driver returned some other error. This call may be retried.
    Other,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlCreateRingBufferError` member.
#[macro_export]
macro_rules! ControlCreateRingBufferErrorUnknown {
    () => {
        _
    };
}

impl ControlCreateRingBufferError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            4 => Some(Self::InvalidElementId),
            5 => Some(Self::InvalidOptions),
            6 => Some(Self::InvalidFormat),
            7 => Some(Self::InvalidMinBytes),
            8 => Some(Self::InvalidRingBuffer),
            9 => Some(Self::AlreadyAllocated),
            10 => Some(Self::FormatMismatch),
            11 => Some(Self::BadRingBufferOption),
            12 => Some(Self::Other),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            4 => Self::InvalidElementId,
            5 => Self::InvalidOptions,
            6 => Self::InvalidFormat,
            7 => Self::InvalidMinBytes,
            8 => Self::InvalidRingBuffer,
            9 => Self::AlreadyAllocated,
            10 => Self::FormatMismatch,
            11 => Self::BadRingBufferOption,
            12 => Self::Other,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::InvalidElementId => 4,
            Self::InvalidOptions => 5,
            Self::InvalidFormat => 6,
            Self::InvalidMinBytes => 7,
            Self::InvalidRingBuffer => 8,
            Self::AlreadyAllocated => 9,
            Self::FormatMismatch => 10,
            Self::BadRingBufferOption => 11,
            Self::Other => 12,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `ControlCreator/Create`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlCreatorError {
    /// The required `token_id` is missing.
    InvalidTokenId,
    /// The required `control_server` is missing.
    InvalidControl,
    /// No device with `token_id` was found. Either this token has never been
    /// used, or the device with `token_id` has been removed.
    DeviceNotFound,
    /// The device with `token_id` encountered an error and cannot be controlled.
    DeviceError,
    /// A `Control` associated with `token_id` already exists. This device is
    /// already being actively controlled.
    AlreadyAllocated,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlCreatorError` member.
#[macro_export]
macro_rules! ControlCreatorErrorUnknown {
    () => {
        _
    };
}

impl ControlCreatorError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::InvalidTokenId),
            2 => Some(Self::InvalidControl),
            3 => Some(Self::DeviceNotFound),
            4 => Some(Self::DeviceError),
            5 => Some(Self::AlreadyAllocated),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::InvalidTokenId,
            2 => Self::InvalidControl,
            3 => Self::DeviceNotFound,
            4 => Self::DeviceError,
            5 => Self::AlreadyAllocated,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::InvalidTokenId => 1,
            Self::InvalidControl => 2,
            Self::DeviceNotFound => 3,
            Self::DeviceError => 4,
            Self::AlreadyAllocated => 5,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Control/Reset`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlResetError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `Reset` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlResetError` member.
#[macro_export]
macro_rules! ControlResetErrorUnknown {
    () => {
        _
    };
}

impl ControlResetError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Control/SetDaiFormat`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlSetDaiFormatError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `SetDaiFormat` call has not yet completed.
    AlreadyPending,
    /// The required `element_id` is missing or does not refer to a `DAI_INTERCONNECT` element.
    InvalidElementId,
    /// The required `dai_format` is missing or invalid.
    InvalidDaiFormat,
    /// The device does not support the specified dai_format.
    FormatMismatch,
    /// The driver returned some other error. This call may be retried.
    Other,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlSetDaiFormatError` member.
#[macro_export]
macro_rules! ControlSetDaiFormatErrorUnknown {
    () => {
        _
    };
}

impl ControlSetDaiFormatError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            4 => Some(Self::InvalidElementId),
            5 => Some(Self::InvalidDaiFormat),
            6 => Some(Self::FormatMismatch),
            7 => Some(Self::Other),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            4 => Self::InvalidElementId,
            5 => Self::InvalidDaiFormat,
            6 => Self::FormatMismatch,
            7 => Self::Other,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::InvalidElementId => 4,
            Self::InvalidDaiFormat => 5,
            Self::FormatMismatch => 6,
            Self::Other => 7,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Control/SetGain`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ControlSetGainError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The required `target_state` is missing.
    InvalidGainState,
    /// The required `target_state.gain_db` is missing.
    InvalidGainDb,
    /// The specified gain is outside the device's allowed range.
    GainOutOfRange,
    /// MUTE is requested, but the device has no MUTE control.
    MuteUnavailable,
    /// Enabling AGC is requested, but the device has no AGC.
    AgcUnavailable,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ControlSetGainError` member.
#[macro_export]
macro_rules! ControlSetGainErrorUnknown {
    () => {
        _
    };
}

impl ControlSetGainError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::InvalidGainState),
            4 => Some(Self::InvalidGainDb),
            5 => Some(Self::GainOutOfRange),
            6 => Some(Self::MuteUnavailable),
            7 => Some(Self::AgcUnavailable),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::InvalidGainState,
            4 => Self::InvalidGainDb,
            5 => Self::GainOutOfRange,
            6 => Self::MuteUnavailable,
            7 => Self::AgcUnavailable,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::InvalidGainState => 3,
            Self::InvalidGainDb => 4,
            Self::GainOutOfRange => 5,
            Self::MuteUnavailable => 6,
            Self::AgcUnavailable => 7,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The protocol used by the driver, and (if StreamConfig) its directionality.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum DeviceType {
    /// The device uses the `fuchsia.hardware.audio/Codec` protocol.
    Codec,
    /// The device uses the `fuchsia.hardware.audio/Composite` protocol.
    Composite,
    /// The device uses the `fuchsia.hardware.audio/Dai` protocol.
    Dai,
    /// The device uses `fuchsia.hardware.audio/StreamConfig` and is a source of audio streams.
    Input,
    /// Device uses `fuchsia.hardware.audio/StreamConfig` and is a destination for audio streams.
    Output,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `DeviceType` member.
#[macro_export]
macro_rules! DeviceTypeUnknown {
    () => {
        _
    };
}

impl DeviceType {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Codec),
            2 => Some(Self::Composite),
            3 => Some(Self::Dai),
            4 => Some(Self::Input),
            5 => Some(Self::Output),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::Codec,
            2 => Self::Composite,
            3 => Self::Dai,
            4 => Self::Input,
            5 => Self::Output,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::Codec => 1,
            Self::Composite => 2,
            Self::Dai => 3,
            Self::Input => 4,
            Self::Output => 5,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Observer/GetReferenceClock`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ObserverGetReferenceClockError {
    /// This device has encountered an error and can no longer be observed.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The device's reference clock could not be returned.
    DeviceClockUnavailable,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ObserverGetReferenceClockError` member.
#[macro_export]
macro_rules! ObserverGetReferenceClockErrorUnknown {
    () => {
        _
    };
}

impl ObserverGetReferenceClockError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::DeviceClockUnavailable),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::DeviceClockUnavailable,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::DeviceClockUnavailable => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Observer/WatchGainState`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ObserverWatchGainStateError {
    /// This device has encountered an error and can no longer be observed.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `WatchGainState` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ObserverWatchGainStateError` member.
#[macro_export]
macro_rules! ObserverWatchGainStateErrorUnknown {
    () => {
        _
    };
}

impl ObserverWatchGainStateError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Observer/WatchPlugState`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ObserverWatchPlugStateError {
    /// This device has encountered an error and can no longer be observed.
    DeviceError,
    /// This device type does not support the method that was called.
    WrongDeviceType,
    /// The previous `WatchPlugState` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ObserverWatchPlugStateError` member.
#[macro_export]
macro_rules! ObserverWatchPlugStateErrorUnknown {
    () => {
        _
    };
}

impl ObserverWatchPlugStateError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::WrongDeviceType),
            3 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::WrongDeviceType,
            3 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::WrongDeviceType => 2,
            Self::AlreadyPending => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The device's hot-plug capabilities.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum PlugDetectCapabilities {
    /// Device is always plugged in. Plug state cannot change.
    Hardwired,
    /// Device can be un/plugged and can asynchronously notify of changes.
    Pluggable,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `PlugDetectCapabilities` member.
#[macro_export]
macro_rules! PlugDetectCapabilitiesUnknown {
    () => {
        _
    };
}

impl PlugDetectCapabilities {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            0 => Some(Self::Hardwired),
            1 => Some(Self::Pluggable),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            0 => Self::Hardwired,
            1 => Self::Pluggable,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::Hardwired => 0,
            Self::Pluggable => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The current plugged-in state for the device.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum PlugState {
    /// Connected and available for audio streaming.
    Plugged,
    /// Not connected; unavailable for audio streaming.
    Unplugged,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `PlugState` member.
#[macro_export]
macro_rules! PlugStateUnknown {
    () => {
        _
    };
}

impl PlugState {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Plugged),
            2 => Some(Self::Unplugged),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::Plugged,
            2 => Self::Unplugged,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::Plugged => 1,
            Self::Unplugged => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by the `Provider` protocol.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ProviderAddDeviceError {
    /// The required `device_name` is incorrectly formed, empty or missing.
    InvalidName,
    /// The required `device_type` is missing.
    InvalidType,
    /// The required `driver_client` is invalid or missing.
    InvalidDriverClient,
    /// The protocol in `driver_client` is incompatible with `device_type` or is not supported yet.
    WrongClientType,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ProviderAddDeviceError` member.
#[macro_export]
macro_rules! ProviderAddDeviceErrorUnknown {
    () => {
        _
    };
}

impl ProviderAddDeviceError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::InvalidName),
            2 => Some(Self::InvalidType),
            3 => Some(Self::InvalidDriverClient),
            4 => Some(Self::WrongClientType),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::InvalidName,
            2 => Self::InvalidType,
            3 => Self::InvalidDriverClient,
            4 => Self::WrongClientType,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::InvalidName => 1,
            Self::InvalidType => 2,
            Self::InvalidDriverClient => 3,
            Self::WrongClientType => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Registry/CreateObserver`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RegistryCreateObserverError {
    /// The required `token_id` is missing.
    InvalidTokenId,
    /// The required `observer_server` is missing.
    InvalidObserver,
    /// No device with `token_id` was found. Either this token has never been
    /// used, or the device with `token_id` has been removed.
    DeviceNotFound,
    /// The device with `token_id` has encountered an error and can no longer be observed.
    DeviceError,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RegistryCreateObserverError` member.
#[macro_export]
macro_rules! RegistryCreateObserverErrorUnknown {
    () => {
        _
    };
}

impl RegistryCreateObserverError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::InvalidTokenId),
            2 => Some(Self::InvalidObserver),
            3 => Some(Self::DeviceNotFound),
            4 => Some(Self::DeviceError),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::InvalidTokenId,
            2 => Self::InvalidObserver,
            3 => Self::DeviceNotFound,
            4 => Self::DeviceError,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::InvalidTokenId => 1,
            Self::InvalidObserver => 2,
            Self::DeviceNotFound => 3,
            Self::DeviceError => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Registry/WatchDeviceRemoved`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RegistryWatchDeviceRemovedError {
    /// The previous `WatchDeviceRemoved` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RegistryWatchDeviceRemovedError` member.
#[macro_export]
macro_rules! RegistryWatchDeviceRemovedErrorUnknown {
    () => {
        _
    };
}

impl RegistryWatchDeviceRemovedError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::AlreadyPending => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `Registry/WatchDevicesAdded`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RegistryWatchDevicesAddedError {
    /// The previous `WatchDevicesAdded` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RegistryWatchDevicesAddedError` member.
#[macro_export]
macro_rules! RegistryWatchDevicesAddedErrorUnknown {
    () => {
        _
    };
}

impl RegistryWatchDevicesAddedError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::AlreadyPending => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `RingBuffer/SetActiveChannels`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RingBufferSetActiveChannelsError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// The previous `SetActiveChannels` call has not yet completed.
    AlreadyPending,
    /// The device does not support `SetActiveChannels`. Individual channels
    /// cannot be deactivated (all channels are always active).
    MethodNotSupported,
    /// The required `channel_bitmask` is missing.
    InvalidChannelBitmask,
    /// The passed `channel_bitmask` specifies channels that are beyond the
    /// range of channels currently configured for this ring buffer.
    ChannelOutOfRange,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RingBufferSetActiveChannelsError` member.
#[macro_export]
macro_rules! RingBufferSetActiveChannelsErrorUnknown {
    () => {
        _
    };
}

impl RingBufferSetActiveChannelsError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::AlreadyPending),
            3 => Some(Self::MethodNotSupported),
            4 => Some(Self::InvalidChannelBitmask),
            5 => Some(Self::ChannelOutOfRange),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::AlreadyPending,
            3 => Self::MethodNotSupported,
            4 => Self::InvalidChannelBitmask,
            5 => Self::ChannelOutOfRange,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::AlreadyPending => 2,
            Self::MethodNotSupported => 3,
            Self::InvalidChannelBitmask => 4,
            Self::ChannelOutOfRange => 5,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `RingBuffer/Start`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RingBufferStartError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// The previous `Start` call has not yet completed.
    AlreadyPending,
    /// `Start` was called on a ring buffer that is already started.
    AlreadyStarted,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RingBufferStartError` member.
#[macro_export]
macro_rules! RingBufferStartErrorUnknown {
    () => {
        _
    };
}

impl RingBufferStartError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::AlreadyPending),
            3 => Some(Self::AlreadyStarted),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::AlreadyPending,
            3 => Self::AlreadyStarted,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::AlreadyPending => 2,
            Self::AlreadyStarted => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `RingBuffer/Stop`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RingBufferStopError {
    /// This device has encountered an error and can no longer be controlled.
    DeviceError,
    /// The previous `Stop` call has not yet completed.
    AlreadyPending,
    /// `Stop` was called on a ring buffer that is already stopped.
    AlreadyStopped,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RingBufferStopError` member.
#[macro_export]
macro_rules! RingBufferStopErrorUnknown {
    () => {
        _
    };
}

impl RingBufferStopError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::AlreadyPending),
            3 => Some(Self::AlreadyStopped),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::AlreadyPending,
            3 => Self::AlreadyStopped,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::AlreadyPending => 2,
            Self::AlreadyStopped => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// Errors returned by `RingBuffer/WatchDelayInfo`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum RingBufferWatchDelayInfoError {
    /// This device has encountered an error and can no longer be observed.
    DeviceError,
    /// The previous `WatchDelayInfo` call has not yet completed.
    AlreadyPending,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `RingBufferWatchDelayInfoError` member.
#[macro_export]
macro_rules! RingBufferWatchDelayInfoErrorUnknown {
    () => {
        _
    };
}

impl RingBufferWatchDelayInfoError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::DeviceError),
            2 => Some(Self::AlreadyPending),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::DeviceError,
            2 => Self::AlreadyPending,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::DeviceError => 1,
            Self::AlreadyPending => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The attributes (e.g. frequency range) of a single channel.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ChannelAttributes {
    /// Minimum frequency that this channel guarantees to emit/capture, in Hz.
    /// If absent, this channel extends to the bottom of the device range.
    ///
    /// Optional.
    pub min_frequency: Option<u32>,
    /// Maximum frequency that this channel guarantees to emit/capture, in Hz.
    /// If absent, this channel extends to the top of the device range.
    ///
    /// Optional.
    pub max_frequency: Option<u32>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ChannelAttributes {}

/// One possible channel configuration for the device.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ChannelSet {
    /// Each item in this vector describes the attributes (e.g. frequency range)
    /// of that channel. The length of this vector defines the number of
    /// channels supported by this ChannelSet. Must contain at least one entry.
    ///
    /// Required.
    pub attributes: Option<Vec<ChannelAttributes>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ChannelSet {}

#[derive(Debug, Default, PartialEq)]
pub struct ControlCreateRingBufferRequest {
    /// The element ID for an `ENDPOINT` of type `RING_BUFFER`.
    ///
    /// Required for Composite; ignored for StreamConfig.
    pub element_id: Option<u64>,
    /// Additional requirements about the actual ring buffer being created.
    ///
    /// Required.
    pub options: Option<RingBufferOptions>,
    /// The server_end of the `RingBuffer` to be created.
    ///
    /// Required.
    pub ring_buffer_server: Option<fidl::endpoints::ServerEnd<RingBufferMarker>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ControlCreateRingBufferRequest
{
}

#[derive(Debug, Default, PartialEq)]
pub struct ControlCreatorCreateRequest {
    /// The token id for the device to be controlled.
    ///
    /// Required.
    pub token_id: Option<u64>,
    /// The server_end of the `Control` to be created.
    ///
    /// Required.
    pub control_server: Option<fidl::endpoints::ServerEnd<ControlMarker>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ControlCreatorCreateRequest
{
}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlCreatorCreateResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlCreatorCreateResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlSetDaiFormatRequest {
    /// The element ID for an `ENDPOINT` of type `DAI_INTERCONNECT`.
    ///
    /// Required for Composite; ignored for Codec.
    pub element_id: Option<u64>,
    pub dai_format: Option<fidl_fuchsia_hardware_audio::DaiFormat>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlSetDaiFormatRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlSetGainRequest {
    /// The gain state to be set.
    ///
    /// Required.
    pub target_state: Option<GainState>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlSetGainRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlCodecStartResponse {
    pub start_time: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlCodecStartResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlCodecStopResponse {
    pub stop_time: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlCodecStopResponse {}

#[derive(Debug, Default, PartialEq)]
pub struct ControlCreateRingBufferResponse {
    /// Properties about the ring buffer and active audio stream as created.
    pub properties: Option<RingBufferProperties>,
    /// An object that represents the audio stream and ring memory itself.
    /// Note: ring-buffer VMO memory ranges must be cache-invalidated before
    /// each read, and cache-flushed after each write.
    pub ring_buffer: Option<fidl_fuchsia_audio::RingBuffer>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ControlCreateRingBufferResponse
{
}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlResetResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlResetResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlSetDaiFormatResponse {
    pub state: Option<fidl_fuchsia_hardware_audio::CodecFormatInfo>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlSetDaiFormatResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ControlSetGainResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ControlSetGainResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct DelayInfo {
    /// The driver's best estimate of the delay internal to the hardware it abstracts for
    /// the chosen format. This duration must be non-negative.
    ///
    /// Required.
    pub internal_delay: Option<i64>,
    /// The amount of pipeline delay beyond the interconnect (subsequent to the
    /// DMA "read" position for output devices, or prior to the DMA "write"
    /// position for input devices). If present, this duration must be non-negative.
    ///
    /// Optional.
    pub external_delay: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for DelayInfo {}

/// This table represents the possible Dai formats that this endpoint can support.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ElementDaiFormatSet {
    /// The ID of the element being described. This must match an ENDPOINT (DAI_INTERCONNECT)
    /// entry in the list of elements contained in the device's `Info` table. If describing the
    /// supported DAI formats for a Codec or Dai device, this value should be
    /// `DEFAULT_DAI_INTERCONNECT_ELEMENT_ID` (1).
    ///
    /// Required.
    pub element_id: Option<u64>,
    /// The dai_format_set entries that this element supports.
    ///
    /// Required. Must contain at least one entry.
    pub format_sets: Option<Vec<fidl_fuchsia_hardware_audio::DaiSupportedFormats>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ElementDaiFormatSet {}

/// This table represents the possible RingBuffer formats that this endpoint can support.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ElementRingBufferFormatSet {
    /// The ID of the element being described. This must match an ENDPOINT (RING_BUFFER) entry
    /// in the list of elements contained in the device's `Info` table. If describing the
    /// supported RingBuffer formats for a Dai or StreamConfig device, this value should be
    /// `DEFAULT_RING_BUFFER_ELEMENT_ID` (0).
    ///
    /// Required.
    pub element_id: Option<u64>,
    /// The ring_buffer_format_set entries that this element supports.
    ///
    /// Required. Must contain at least one entry.
    pub format_sets: Option<Vec<PcmFormatSet>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ElementRingBufferFormatSet {}

/// The device's overall gain capabilities.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct GainCapabilities {
    /// The device's minimum gain, in decibels.
    ///
    /// Required.
    pub min_gain_db: Option<f32>,
    /// The device's maximum gain, in decibels.
    ///
    /// Required.
    pub max_gain_db: Option<f32>,
    /// The precision of each gain-change step, in decibels.
    ///
    /// Required.
    pub gain_step_db: Option<f32>,
    /// If true, the device contains a distinct MUTE control. If false or
    /// absent, it does not.
    ///
    /// Optional.
    pub can_mute: Option<bool>,
    /// Automatic Gain Control. If absent, this hardware does not support AGC.
    ///
    /// Optional.
    pub can_agc: Option<bool>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for GainCapabilities {}

/// The device's current state of gain.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct GainState {
    /// Device-wide gain, in decibels.
    ///
    /// Required.
    pub gain_db: Option<f32>,
    /// Mute state for all channels. If absent, all channels are unmuted.
    ///
    /// Optional.
    pub muted: Option<bool>,
    /// Automatic Gain Control. If absent, disabled.
    ///
    /// Optional.
    pub agc_enabled: Option<bool>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for GainState {}

/// When a device is detected (or added via `Provider/AddDevice`), it is
/// queried for its properties and capabilities. Once this enumeration process
/// completes, it is announced to clients that are watching for device arrivals
/// via `Registry/WatchDevicesAdded`.
///
/// An `Info` table is returned for each audio device that has been added.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct Info {
    /// A device identifier that is guaranteed unique for this boot session, but
    /// may change across reboots.
    ///
    /// Required for all device types.
    pub token_id: Option<u64>,
    /// The protocol used by the driver, and (if StreamConfig) its directionality.
    ///
    /// Required for all device types.
    pub device_type: Option<DeviceType>,
    /// The device's high-level name, as received from devfs or the `Provider/AddDevice` caller.
    /// This string must be non-empty.
    ///
    /// Required for all device types.
    pub device_name: Option<String>,
    /// The name of the device's manufacturer.
    /// If present, this string must be non-empty.
    ///
    /// Optional for all device types.
    pub manufacturer: Option<String>,
    /// The device's high-level product name.
    /// If present, this string must be non-empty.
    ///
    /// Optional for all device types.
    pub product: Option<String>,
    /// A 16-character ID provided by the driver that (if present) can be used
    /// to differentiate instances of the same device. This value should not
    /// change across system reboots.
    ///
    /// Optional for all device types.
    pub unique_instance_id: Option<[u8; 16]>,
    /// Whether the device is a source (is_input TRUE) or destination (is_input FALSE) of audio.
    ///
    /// Required for StreamConfig; optional for Codec; absent for Composite.
    pub is_input: Option<bool>,
    /// The union of all formats the device can support, across all combinations of device
    /// configuration settings.
    /// If the device exposes one or more RingBuffer ENDPOINT elements, this field must be present
    /// and its vector must contain exactly one entry for each relevant ENDPOINT element.
    /// If the device exposes NO RingBuffer ENDPOINT elements, this field must be omitted (entirely
    /// absent, rather than populated with an empty vector).
    /// If present, must contain at least one element.
    ///
    /// Required for StreamConfig; optional for Composite; absent for Codec.
    pub ring_buffer_format_sets: Option<Vec<ElementRingBufferFormatSet>>,
    /// The union of all DAI formats the device can support, across all combinations
    /// of device configuration settings.
    /// If the device exposes one or more Dai ENDPOINT elements, this field must be present and its
    /// vector must contain exactly one entry for each relevant ENDPOINT element.
    /// If the device exposes NO Dai ENDPOINT elements, this field must be omitted (entirely absent,
    /// rather than populated with an empty vector).
    /// If present, must contain at least one element.
    ///
    /// Required for Codec; optional for Composite; absent for StreamConfig.
    pub dai_format_sets: Option<Vec<ElementDaiFormatSet>>,
    /// The device's gain/mute capabilities.
    ///
    /// Required for StreamConfig; absent for Codec and Composite.
    pub gain_caps: Option<GainCapabilities>,
    /// The device's hot-plug capabilities.
    ///
    /// Required for Codec and StreamConfig; absent for Composite.
    pub plug_detect_caps: Option<PlugDetectCapabilities>,
    /// An identifier for the clock domain in which the device's clock hardware
    /// operates. Devices in the same clock domain remain perfectly
    /// synchronized. They may drift relative to some other clock domain, but
    /// all clocks in that domain will do so perfectly  _together_. Although
    /// their clocks have the same rate, their positions may be offset by an
    /// arbitrary, fixed amount.
    ///
    /// There are two special values for clock domain:
    ///
    /// *  `CLOCK_DOMAIN_MONOTONIC` means the hardware is driven by the system
    ///    montonic clock and will always be synchronized with that timeline.
    ///
    /// *  `CLOCK_DOMAIN_EXTERNAL` means the hardware is not synchronized with any
    ///    other known clocks (even any other clocks in `CLOCK_DOMAIN_EXTERNAL`).
    ///
    /// Required for Composite and StreamConfig; absent for Codec.
    pub clock_domain: Option<u32>,
    /// The vector of supported signal-processing elements.
    /// If present, must contain at least one element.
    ///
    /// Required for Composite; optional for Codec and StreamConfig.
    pub signal_processing_elements:
        Option<Vec<fidl_fuchsia_hardware_audio_signalprocessing::Element>>,
    /// The vector of supported signal-processing topologies.
    /// If present, must contain at least one element.
    ///
    /// Required for Composite; optional for Codec and StreamConfig.
    pub signal_processing_topologies:
        Option<Vec<fidl_fuchsia_hardware_audio_signalprocessing::Topology>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for Info {}

#[derive(Debug, Default, PartialEq)]
pub struct ObserverGetReferenceClockResponse {
    /// The device's reference clock.
    pub reference_clock: Option<fidl::Clock>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ObserverGetReferenceClockResponse
{
}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ObserverWatchGainStateResponse {
    /// The device's most recent gain state.
    pub state: Option<GainState>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ObserverWatchGainStateResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ObserverWatchPlugStateResponse {
    /// The device's current plug state.
    pub state: Option<PlugState>,
    /// The time (in CLOCK_MONOTONIC) of the most-recent change in plug state.
    pub plug_time: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ObserverWatchPlugStateResponse {}

/// This table contains vectors representing three dimensions of device
/// configuration (channelization, sample format, frame rate). The device should
/// support all combinations of the items in these vectors.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct PcmFormatSet {
    /// The number of channel sets that the device supports. This must contain
    /// at least one `ChannelSet` entry.
    ///
    /// Required.
    pub channel_sets: Option<Vec<ChannelSet>>,
    /// The number of sample formats that the device supports. This must
    /// contain least one `AudioSampleFormat` entry.
    ///
    /// Required.
    pub sample_types: Option<Vec<fidl_fuchsia_audio::SampleType>>,
    /// The number of frame rates that the device supports. This must contain at
    /// least one frame rate entry.
    ///
    /// Required.
    pub frame_rates: Option<Vec<u32>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for PcmFormatSet {}

#[derive(Debug, Default, PartialEq)]
pub struct ProviderAddDeviceRequest {
    /// The device's high-level name. Must not be an empty string.
    ///
    /// Required.
    pub device_name: Option<String>,
    /// Indicates the protocol used by the device, as well as (if StreamConfig) whether
    /// it is an input (a source of audio) or an output (a destination for audio).
    ///
    /// Required.
    pub device_type: Option<DeviceType>,
    /// The client_end of the protocol channel (Codec, Composite, Dai or StreamConfig)
    /// that this service will use to configure/observe the device.
    /// For now, `AddDevice` only accepts a `codec_client`, `composite_client` or
    /// `stream_config_client` here.
    ///
    /// Required.
    /// # Deprecation
    ///
    /// Codec, Dai and StreamConfig are not supported anymore, instead use an
    /// [Audio Composite](https://fuchsia.dev/fuchsia-src/development/audio/drivers/composite)
    /// , see
    /// [Audio Drivers Architecture](https://fuchsia.dev/fuchsia-src/development/audio/drivers/architecture)
    pub driver_client: Option<DriverClient>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for ProviderAddDeviceRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct ProviderAddDeviceResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ProviderAddDeviceResponse {}

#[derive(Debug, Default, PartialEq)]
pub struct RegistryCreateObserverRequest {
    /// The token of the device to be observed.
    ///
    /// Required.
    pub token_id: Option<u64>,
    /// The server end of the `Observer` that will be created.
    ///
    /// Required.
    pub observer_server: Option<fidl::endpoints::ServerEnd<ObserverMarker>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for RegistryCreateObserverRequest
{
}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RegistryCreateObserverResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RegistryCreateObserverResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RegistryWatchDeviceRemovedResponse {
    /// The token of the device least-recently removed.
    pub token_id: Option<u64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RegistryWatchDeviceRemovedResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RegistryWatchDevicesAddedResponse {
    /// Devices added since `WatchDevicesAdded` was last called. When called
    /// for the first time, this method returns all available audio devices
    /// (even an empty vector, if no audio devices are present). Subsequent
    /// calls will pend until additional devices become available.
    pub devices: Option<Vec<Info>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RegistryWatchDevicesAddedResponse {}

/// Parameters specified by a caller when creating a ring buffer.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferOptions {
    /// The format (sample format, channelization, frame rate) of the ring
    /// buffer to be created.
    ///
    /// Required.
    pub format: Option<fidl_fuchsia_audio::Format>,
    /// The minimum number of bytes required in the ring buffer. The actual
    /// buffer may be larger, as required by the encoding, driver, device or OS.
    ///
    /// Required.
    pub ring_buffer_min_bytes: Option<u32>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferOptions {}

/// Information about the ring buffer or associated audio stream.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferProperties {
    /// The number of bits (starting with the most significant) that are valid,
    /// within each individual sample. This may be be smaller than the actual
    /// sample size, in the case of an input ring buffer fed by an 18-bit ADC
    /// for example. Any additional bits of precision should be ignored.
    ///
    /// Required.
    pub valid_bits_per_sample: Option<u8>,
    /// The maximum delay until disabled channels become fully operational,
    /// after calling `SetActiveChannels`. This is the worst-case duration when
    /// reenabling all channels. The value must be non-negative.
    ///
    /// Required.
    pub turn_on_delay: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferProperties {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferSetActiveChannelsRequest {
    /// The channels to be activated (all others should be deactivated). No
    /// bit should be set above the `channel_count` specified in the ring
    /// buffer format (e.g. for a four-channel stream, `channel_bitmask`
    /// must be in the [0x00, 0x0F] range).
    ///
    /// Required.
    pub channel_bitmask: Option<u64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferSetActiveChannelsRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferStartRequest {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferStartRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferStopRequest {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferStopRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferSetActiveChannelsResponse {
    /// The CLOCK_MONOTONIC time when the hardware was configured. Note:
    /// this does not include the effects of `turn_on_delay` on streams.
    ///
    /// Required.
    pub set_time: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferSetActiveChannelsResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferStartResponse {
    /// The CLOCK_MONOTONIC time when the stream was started.
    ///
    /// Required.
    pub start_time: Option<i64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferStartResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferStopResponse {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferStopResponse {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct RingBufferWatchDelayInfoResponse {
    /// Required.
    pub delay_info: Option<DelayInfo>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for RingBufferWatchDelayInfoResponse {}

/// The protocol channel used to configure and observe a device.
/// # Deprecation
///
/// Codec, Dai and StreamConfig are not supported anymore, instead use an
/// [Audio Composite](https://fuchsia.dev/fuchsia-src/development/audio/drivers/composite), see
/// [Audio Drivers Architecture](https://fuchsia.dev/fuchsia-src/development/audio/drivers/architecture)
#[derive(Debug)]
pub enum DriverClient {
    /// Populated for drivers that use the `fuchsia_hardware_audio.Codec` interface.
    Codec(fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CodecMarker>),
    /// Populated for drivers that use the `fuchsia_hardware_audio.Composite` interface.
    Composite(fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CompositeMarker>),
    /// Populated for drivers that use the `fuchsia_hardware_audio.Dai` interface.
    Dai(fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>),
    /// Populated for drivers that use the `fuchsia_hardware_audio.StreamConfig` interface.
    StreamConfig(fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::StreamConfigMarker>),
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

/// Pattern that matches an unknown `DriverClient` member.
#[macro_export]
macro_rules! DriverClientUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for DriverClient {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::Codec(x), Self::Codec(y)) => *x == *y,
            (Self::Composite(x), Self::Composite(y)) => *x == *y,
            (Self::Dai(x), Self::Dai(y)) => *x == *y,
            (Self::StreamConfig(x), Self::StreamConfig(y)) => *x == *y,
            _ => false,
        }
    }
}

impl DriverClient {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Codec(_) => 1,
            Self::Composite(_) => 2,
            Self::Dai(_) => 3,
            Self::StreamConfig(_) => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for DriverClient {}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ControlMarker;

impl fidl::endpoints::ProtocolMarker for ControlMarker {
    type Proxy = ControlProxy;
    type RequestStream = ControlRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ControlSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) Control";
}
pub type ControlSetGainResult = Result<ControlSetGainResponse, ControlSetGainError>;
pub type ControlCreateRingBufferResult =
    Result<ControlCreateRingBufferResponse, ControlCreateRingBufferError>;
pub type ControlSetDaiFormatResult = Result<ControlSetDaiFormatResponse, ControlSetDaiFormatError>;
pub type ControlCodecStartResult = Result<ControlCodecStartResponse, ControlCodecStartError>;
pub type ControlCodecStopResult = Result<ControlCodecStopResponse, ControlCodecStopError>;
pub type ControlResetResult = Result<ControlResetResponse, ControlResetError>;

pub trait ControlProxyInterface: Send + Sync {
    type GetElementsResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
                fidl::Error,
            >,
        > + Send;
    fn r#get_elements(&self) -> Self::GetElementsResponseFut;
    type WatchElementStateResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
                fidl::Error,
            >,
        > + Send;
    fn r#watch_element_state(
        &self,
        processing_element_id: u64,
    ) -> Self::WatchElementStateResponseFut;
    type GetTopologiesResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
                fidl::Error,
            >,
        > + Send;
    fn r#get_topologies(&self) -> Self::GetTopologiesResponseFut;
    type WatchTopologyResponseFut: std::future::Future<Output = Result<u64, fidl::Error>> + Send;
    fn r#watch_topology(&self) -> Self::WatchTopologyResponseFut;
    type SetElementStateResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
                fidl::Error,
            >,
        > + Send;
    fn r#set_element_state(
        &self,
        processing_element_id: u64,
        state: &fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
    ) -> Self::SetElementStateResponseFut;
    type SetTopologyResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
                fidl::Error,
            >,
        > + Send;
    fn r#set_topology(&self, topology_id: u64) -> Self::SetTopologyResponseFut;
    type SetGainResponseFut: std::future::Future<Output = Result<ControlSetGainResult, fidl::Error>>
        + Send;
    fn r#set_gain(&self, payload: &ControlSetGainRequest) -> Self::SetGainResponseFut;
    type CreateRingBufferResponseFut: std::future::Future<Output = Result<ControlCreateRingBufferResult, fidl::Error>>
        + Send;
    fn r#create_ring_buffer(
        &self,
        payload: ControlCreateRingBufferRequest,
    ) -> Self::CreateRingBufferResponseFut;
    type SetDaiFormatResponseFut: std::future::Future<Output = Result<ControlSetDaiFormatResult, fidl::Error>>
        + Send;
    fn r#set_dai_format(
        &self,
        payload: &ControlSetDaiFormatRequest,
    ) -> Self::SetDaiFormatResponseFut;
    type CodecStartResponseFut: std::future::Future<Output = Result<ControlCodecStartResult, fidl::Error>>
        + Send;
    fn r#codec_start(&self) -> Self::CodecStartResponseFut;
    type CodecStopResponseFut: std::future::Future<Output = Result<ControlCodecStopResult, fidl::Error>>
        + Send;
    fn r#codec_stop(&self) -> Self::CodecStopResponseFut;
    type ResetResponseFut: std::future::Future<Output = Result<ControlResetResult, fidl::Error>>
        + Send;
    fn r#reset(&self) -> Self::ResetResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ControlSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ControlSynchronousProxy {
    type Proxy = ControlProxy;
    type Protocol = ControlMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ControlSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ControlEvent, fidl::Error> {
        ControlEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    pub fn r#get_elements(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult, fidl::Error>
    {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::ResultType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
                i32,
            >>(
                (), 0x1b14ff4adf5dc6f8, fidl::encoding::DynamicFlags::empty(), ___deadline
            )?;
        Ok(_response.map(|x| x.processing_elements))
    }

    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    pub fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ElementState, fidl::Error> {
        let _response = self.client.send_query::<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse,
        >(
            (processing_element_id,),
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.state)
    }

    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    pub fn r#get_topologies(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult, fidl::Error>
    {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::ResultType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
                i32,
            >>(
                (), 0x73ffb73af24d30b6, fidl::encoding::DynamicFlags::empty(), ___deadline
            )?;
        Ok(_response.map(|x| x.topologies))
    }

    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    pub fn r#watch_topology(&self, ___deadline: zx::MonotonicInstant) -> Result<u64, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
            >>(
                (), 0x66d172acdb36a729, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ControlMarker>("watch_topology")?;
        Ok(_response.topology_id)
    }

    /// Controls a processing element using a unique ElementId returned by `GetElements`.
    /// Note that `SettableElementState` is a subset of `ElementState`, because some fields returned
    /// from `WatchElementState` (e.g. `latency`) can only be observed (not set) by the client.
    ///
    /// Returns `ZX_ERR_INVALID_ARGS` if the `processing_element_id` does not match an id returned
    /// by `GetElements` or the type of `SettableTypeSpecificElementState` does not
    /// match the `ElementType` of the processing element returned by
    /// `GetElements` for this id.
    /// The driver may return `ZX_ERR_INVALID_ARGS` if the `state` values are invalid, i.e. any
    /// of the values violates rules specified in this protocol, e.g. trying to change an
    /// `EQUALIZER` processing element's `EqualizerBandState` `frequency` when this processing
    /// element did not advertise `CAN_CONTROL_FREQUENCY` in its `supported_controls`.
    ///
    /// `SetElementState` may be called before or after non-`SignalProcessing` protocol
    /// calls. If called after non-`SignalProcessing` protocol calls then
    /// `SetElementState` may or may not require renegotiation of the driver state as
    /// reached with calls of the protocol composing `SignalProcessing`, e.g. `Dai`.
    /// For instance, `SetElementState` changing an `AGL` processing element's parameters
    /// may not require renegotiation of the `Dai` state because changing a gain parameter usually
    /// does not change the set of supported audio formats.
    /// By contrast, if `SetElementState` changes the parameters of a `CONNECTION_POINT`
    /// element, the change may require renegotiation because it may invalidate the set of
    /// supported formats returned in a previous `GetDaiFormats` `Dai` protocol call.
    ///
    /// It is the driver's job to determine when renegotiation is required. If renegotiation is
    /// required, then `SetElementState` must return `ZX_ERR_BAD_STATE` and the client must
    /// close the protocol channel such that the protocol negotiations are started over.
    /// The client then must make the `SetElementState` call that returned
    /// `ZX_ERR_BAD_STATE` before any non-`SignalProcessing` protocol calls.
    pub fn r#set_element_state(
        &self,
        mut processing_element_id: u64,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
        fidl::Error,
    > {
        let _response = self.client.send_query::<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
        >(
            (processing_element_id, state,),
            0x38c3b2d4bae698f4,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Sets the topology to be used using an id to the vector returned by `GetTopologies`.
    /// The current topology is communicated by `WatchTopology` responses. To change which topology
    /// is active, a client uses `SetTopology`.
    /// If the specified `topology_id` is not within the`topologies` returned by `GetTopologies`,
    /// this call will return `ZX_ERR_INVALID_ARGS`.
    /// If `GetTopologies` returns only one `Topology`, `SetTopology` is optional and has no effect.
    ///
    /// `SetTopology` may be called before or after non-`SignalProcessing` protocol calls.
    /// If called after non-`SignalProcessing` protocol calls, then `SetTopology` may return
    /// `ZX_ERR_BAD_STATE` to indicate that the operation can not proceed without renegotiation of
    /// the driver state. See `SetElementState` for further discussion.
    pub fn r#set_topology(
        &self,
        mut topology_id: u64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
        fidl::Error,
    > {
        let _response = self.client.send_query::<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
        >(
            (topology_id,),
            0x1d9a7f9b8fee790c,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Change the device's overall gain state.
    ///
    /// Should only be called for StreamConfig devices.
    pub fn r#set_gain(
        &self,
        mut payload: &ControlSetGainRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlSetGainResult, fidl::Error> {
        let _response = self.client.send_query::<
            ControlSetGainRequest,
            fidl::encoding::FlexibleResultType<ControlSetGainResponse, ControlSetGainError>,
        >(
            payload,
            0x4354ee814b05da66,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<ControlMarker>("set_gain")?;
        Ok(_response.map(|x| x))
    }

    /// Create the ring buffer used to pass audio to/from this device. If the device is
    /// Composite, then the targeted RING_BUFFER ENDPOINT must be identified by `element_id`.
    ///
    /// Should only be called for Composite and StreamConfig devices.
    pub fn r#create_ring_buffer(
        &self,
        mut payload: ControlCreateRingBufferRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlCreateRingBufferResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<ControlCreateRingBufferRequest, fidl::encoding::FlexibleResultType<
                ControlCreateRingBufferResponse,
                ControlCreateRingBufferError,
            >>(
                &mut payload,
                0x7462941cedb333db,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                ___deadline,
            )?
            .into_result::<ControlMarker>("create_ring_buffer")?;
        Ok(_response.map(|x| x))
    }

    /// Set the wire format for the digital interconnect connected to this Codec endpoint.
    /// This method returns information related to the format that was set, including delay values.
    /// If the device is Composite, then the targeted DAI_INTERCONNECT ENDPOINT must be identified
    /// by `element_id`.
    ///
    /// Should only be called for Codec and Composite devices.
    pub fn r#set_dai_format(
        &self,
        mut payload: &ControlSetDaiFormatRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlSetDaiFormatResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<ControlSetDaiFormatRequest, fidl::encoding::FlexibleResultType<
                ControlSetDaiFormatResponse,
                ControlSetDaiFormatError,
            >>(
                payload, 0x1d84f5a456a92216, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ControlMarker>("set_dai_format")?;
        Ok(_response.map(|x| x))
    }

    /// Start the Codec hardware. If successful, this returns after the Codec was started and
    /// `start_time` indicates the time when the hardware started. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    pub fn r#codec_start(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlCodecStartResult, fidl::Error> {
        let _response =
            self.client
                .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                    ControlCodecStartResponse,
                    ControlCodecStartError,
                >>(
                    (), 0x2a90a9d2958b997b, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
                )?
                .into_result::<ControlMarker>("codec_start")?;
        Ok(_response.map(|x| x))
    }

    /// Stop the Codec hardware. If successful, this returns after the Codec was stopped and
    /// `stop_time` indicates the time when the hardware stopped. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    pub fn r#codec_stop(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlCodecStopResult, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            fidl::encoding::FlexibleResultType<ControlCodecStopResponse, ControlCodecStopError>,
        >(
            (),
            0x387297bb6bcad25f,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<ControlMarker>("codec_stop")?;
        Ok(_response.map(|x| x))
    }

    /// Reset the hardware -- stopping the hardware, releasing any ring buffers, and clearing any
    /// DaiFormats or RingBufferFormats that were set.
    ///
    /// This method returns when the hardware reset is complete.
    /// After calling this method, the device is still controlled, but any ring buffers must be
    /// re-created and re-started.
    /// For devices with DAI_INTERCONNECTs (such as Codecs and some Composites), `SetDaiFormat` and
    /// `CodecStart` must be called again (in that order) to return the interconnect to the active
    /// operational mode.
    /// As applicable, `SetTopology` and `SetElementState` must also be called.
    ///
    /// Should only be called for Codec and Composite devices.
    pub fn r#reset(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlResetResult, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            fidl::encoding::FlexibleResultType<ControlResetResponse, ControlResetError>,
        >(
            (),
            0x49840db00a698996,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<ControlMarker>("reset")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct ControlProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ControlProxy {
    type Protocol = ControlMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ControlProxy {
    /// Create a new Proxy for fuchsia.audio.device/Control.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ControlEventStream {
        ControlEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    pub fn r#get_elements(
        &self,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#get_elements(self)
    }

    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    pub fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#watch_element_state(self, processing_element_id)
    }

    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    pub fn r#get_topologies(
        &self,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#get_topologies(self)
    }

    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    pub fn r#watch_topology(
        &self,
    ) -> fidl::client::QueryResponseFut<u64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        ControlProxyInterface::r#watch_topology(self)
    }

    /// Controls a processing element using a unique ElementId returned by `GetElements`.
    /// Note that `SettableElementState` is a subset of `ElementState`, because some fields returned
    /// from `WatchElementState` (e.g. `latency`) can only be observed (not set) by the client.
    ///
    /// Returns `ZX_ERR_INVALID_ARGS` if the `processing_element_id` does not match an id returned
    /// by `GetElements` or the type of `SettableTypeSpecificElementState` does not
    /// match the `ElementType` of the processing element returned by
    /// `GetElements` for this id.
    /// The driver may return `ZX_ERR_INVALID_ARGS` if the `state` values are invalid, i.e. any
    /// of the values violates rules specified in this protocol, e.g. trying to change an
    /// `EQUALIZER` processing element's `EqualizerBandState` `frequency` when this processing
    /// element did not advertise `CAN_CONTROL_FREQUENCY` in its `supported_controls`.
    ///
    /// `SetElementState` may be called before or after non-`SignalProcessing` protocol
    /// calls. If called after non-`SignalProcessing` protocol calls then
    /// `SetElementState` may or may not require renegotiation of the driver state as
    /// reached with calls of the protocol composing `SignalProcessing`, e.g. `Dai`.
    /// For instance, `SetElementState` changing an `AGL` processing element's parameters
    /// may not require renegotiation of the `Dai` state because changing a gain parameter usually
    /// does not change the set of supported audio formats.
    /// By contrast, if `SetElementState` changes the parameters of a `CONNECTION_POINT`
    /// element, the change may require renegotiation because it may invalidate the set of
    /// supported formats returned in a previous `GetDaiFormats` `Dai` protocol call.
    ///
    /// It is the driver's job to determine when renegotiation is required. If renegotiation is
    /// required, then `SetElementState` must return `ZX_ERR_BAD_STATE` and the client must
    /// close the protocol channel such that the protocol negotiations are started over.
    /// The client then must make the `SetElementState` call that returned
    /// `ZX_ERR_BAD_STATE` before any non-`SignalProcessing` protocol calls.
    pub fn r#set_element_state(
        &self,
        mut processing_element_id: u64,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#set_element_state(self, processing_element_id, state)
    }

    /// Sets the topology to be used using an id to the vector returned by `GetTopologies`.
    /// The current topology is communicated by `WatchTopology` responses. To change which topology
    /// is active, a client uses `SetTopology`.
    /// If the specified `topology_id` is not within the`topologies` returned by `GetTopologies`,
    /// this call will return `ZX_ERR_INVALID_ARGS`.
    /// If `GetTopologies` returns only one `Topology`, `SetTopology` is optional and has no effect.
    ///
    /// `SetTopology` may be called before or after non-`SignalProcessing` protocol calls.
    /// If called after non-`SignalProcessing` protocol calls, then `SetTopology` may return
    /// `ZX_ERR_BAD_STATE` to indicate that the operation can not proceed without renegotiation of
    /// the driver state. See `SetElementState` for further discussion.
    pub fn r#set_topology(
        &self,
        mut topology_id: u64,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#set_topology(self, topology_id)
    }

    /// Change the device's overall gain state.
    ///
    /// Should only be called for StreamConfig devices.
    pub fn r#set_gain(
        &self,
        mut payload: &ControlSetGainRequest,
    ) -> fidl::client::QueryResponseFut<
        ControlSetGainResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#set_gain(self, payload)
    }

    /// Create the ring buffer used to pass audio to/from this device. If the device is
    /// Composite, then the targeted RING_BUFFER ENDPOINT must be identified by `element_id`.
    ///
    /// Should only be called for Composite and StreamConfig devices.
    pub fn r#create_ring_buffer(
        &self,
        mut payload: ControlCreateRingBufferRequest,
    ) -> fidl::client::QueryResponseFut<
        ControlCreateRingBufferResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#create_ring_buffer(self, payload)
    }

    /// Set the wire format for the digital interconnect connected to this Codec endpoint.
    /// This method returns information related to the format that was set, including delay values.
    /// If the device is Composite, then the targeted DAI_INTERCONNECT ENDPOINT must be identified
    /// by `element_id`.
    ///
    /// Should only be called for Codec and Composite devices.
    pub fn r#set_dai_format(
        &self,
        mut payload: &ControlSetDaiFormatRequest,
    ) -> fidl::client::QueryResponseFut<
        ControlSetDaiFormatResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#set_dai_format(self, payload)
    }

    /// Start the Codec hardware. If successful, this returns after the Codec was started and
    /// `start_time` indicates the time when the hardware started. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    pub fn r#codec_start(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ControlCodecStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#codec_start(self)
    }

    /// Stop the Codec hardware. If successful, this returns after the Codec was stopped and
    /// `stop_time` indicates the time when the hardware stopped. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    pub fn r#codec_stop(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ControlCodecStopResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#codec_stop(self)
    }

    /// Reset the hardware -- stopping the hardware, releasing any ring buffers, and clearing any
    /// DaiFormats or RingBufferFormats that were set.
    ///
    /// This method returns when the hardware reset is complete.
    /// After calling this method, the device is still controlled, but any ring buffers must be
    /// re-created and re-started.
    /// For devices with DAI_INTERCONNECTs (such as Codecs and some Composites), `SetDaiFormat` and
    /// `CodecStart` must be called again (in that order) to return the interconnect to the active
    /// operational mode.
    /// As applicable, `SetTopology` and `SetElementState` must also be called.
    ///
    /// Should only be called for Codec and Composite devices.
    pub fn r#reset(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ControlResetResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#reset(self)
    }
}

impl ControlProxyInterface for ControlProxy {
    type GetElementsResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_elements(&self) -> Self::GetElementsResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
                    i32,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1b14ff4adf5dc6f8,
            >(_buf?)?;
            Ok(_response.map(|x| x.processing_elements))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        >(
            (),
            0x1b14ff4adf5dc6f8,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WatchElementStateResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
    ) -> Self::WatchElementStateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ElementState, fidl::Error>
        {
            let _response = fidl::client::decode_transaction_body::<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x524da8772a69056f,
            >(_buf?)?;
            Ok(_response.state)
        }
        self.client.send_query_and_decode::<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        >(
            (processing_element_id,),
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type GetTopologiesResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_topologies(&self) -> Self::GetTopologiesResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
                    i32,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x73ffb73af24d30b6,
            >(_buf?)?;
            Ok(_response.map(|x| x.topologies))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        >(
            (),
            0x73ffb73af24d30b6,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WatchTopologyResponseFut =
        fidl::client::QueryResponseFut<u64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#watch_topology(&self) -> Self::WatchTopologyResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<u64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x66d172acdb36a729,
            >(_buf?)?
            .into_result::<ControlMarker>("watch_topology")?;
            Ok(_response.topology_id)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, u64>(
            (),
            0x66d172acdb36a729,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type SetElementStateResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#set_element_state(
        &self,
        mut processing_element_id: u64,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
    ) -> Self::SetElementStateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x38c3b2d4bae698f4,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateResult,
        >(
            (processing_element_id, state,),
            0x38c3b2d4bae698f4,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type SetTopologyResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#set_topology(&self, mut topology_id: u64) -> Self::SetTopologyResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1d9a7f9b8fee790c,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyResult,
        >(
            (topology_id,),
            0x1d9a7f9b8fee790c,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type SetGainResponseFut = fidl::client::QueryResponseFut<
        ControlSetGainResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#set_gain(&self, mut payload: &ControlSetGainRequest) -> Self::SetGainResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlSetGainResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<ControlSetGainResponse, ControlSetGainError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4354ee814b05da66,
            >(_buf?)?
            .into_result::<ControlMarker>("set_gain")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<ControlSetGainRequest, ControlSetGainResult>(
            payload,
            0x4354ee814b05da66,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type CreateRingBufferResponseFut = fidl::client::QueryResponseFut<
        ControlCreateRingBufferResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#create_ring_buffer(
        &self,
        mut payload: ControlCreateRingBufferRequest,
    ) -> Self::CreateRingBufferResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlCreateRingBufferResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ControlCreateRingBufferResponse,
                    ControlCreateRingBufferError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x7462941cedb333db,
            >(_buf?)?
            .into_result::<ControlMarker>("create_ring_buffer")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<ControlCreateRingBufferRequest, ControlCreateRingBufferResult>(
                &mut payload,
                0x7462941cedb333db,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }

    type SetDaiFormatResponseFut = fidl::client::QueryResponseFut<
        ControlSetDaiFormatResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#set_dai_format(
        &self,
        mut payload: &ControlSetDaiFormatRequest,
    ) -> Self::SetDaiFormatResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlSetDaiFormatResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ControlSetDaiFormatResponse,
                    ControlSetDaiFormatError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1d84f5a456a92216,
            >(_buf?)?
            .into_result::<ControlMarker>("set_dai_format")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<ControlSetDaiFormatRequest, ControlSetDaiFormatResult>(
            payload,
            0x1d84f5a456a92216,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type CodecStartResponseFut = fidl::client::QueryResponseFut<
        ControlCodecStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#codec_start(&self) -> Self::CodecStartResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlCodecStartResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ControlCodecStartResponse,
                    ControlCodecStartError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x2a90a9d2958b997b,
            >(_buf?)?
            .into_result::<ControlMarker>("codec_start")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, ControlCodecStartResult>(
            (),
            0x2a90a9d2958b997b,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type CodecStopResponseFut = fidl::client::QueryResponseFut<
        ControlCodecStopResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#codec_stop(&self) -> Self::CodecStopResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlCodecStopResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<ControlCodecStopResponse, ControlCodecStopError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x387297bb6bcad25f,
            >(_buf?)?
            .into_result::<ControlMarker>("codec_stop")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, ControlCodecStopResult>(
            (),
            0x387297bb6bcad25f,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type ResetResponseFut = fidl::client::QueryResponseFut<
        ControlResetResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#reset(&self) -> Self::ResetResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlResetResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<ControlResetResponse, ControlResetError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x49840db00a698996,
            >(_buf?)?
            .into_result::<ControlMarker>("reset")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, ControlResetResult>(
            (),
            0x49840db00a698996,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }
}

pub struct ControlEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ControlEventStream {}

impl futures::stream::FusedStream for ControlEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ControlEventStream {
    type Item = Result<ControlEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ControlEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ControlEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl ControlEvent {
    /// Decodes a message buffer as a [`ControlEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ControlEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(ControlEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/Control.
pub struct ControlRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ControlRequestStream {}

impl futures::stream::FusedStream for ControlRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ControlRequestStream {
    type Protocol = ControlMarker;
    type ControlHandle = ControlControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ControlControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ControlRequestStream {
    type Item = Result<ControlRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ControlRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x1b14ff4adf5dc6f8 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::GetElements {
                            responder: ControlGetElementsResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x524da8772a69056f => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::WatchElementState {
                            processing_element_id: req.processing_element_id,

                            responder: ControlWatchElementStateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x73ffb73af24d30b6 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::GetTopologies {
                            responder: ControlGetTopologiesResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x66d172acdb36a729 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::WatchTopology {
                            responder: ControlWatchTopologyResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x38c3b2d4bae698f4 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::SetElementState {
                            processing_element_id: req.processing_element_id,
                            state: req.state,

                            responder: ControlSetElementStateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x1d9a7f9b8fee790c => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl_fuchsia_hardware_audio_signalprocessing::SignalProcessingSetTopologyRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::SetTopology {
                            topology_id: req.topology_id,

                            responder: ControlSetTopologyResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x4354ee814b05da66 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ControlSetGainRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ControlSetGainRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::SetGain {
                            payload: req,
                            responder: ControlSetGainResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x7462941cedb333db => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ControlCreateRingBufferRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ControlCreateRingBufferRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::CreateRingBuffer {
                            payload: req,
                            responder: ControlCreateRingBufferResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x1d84f5a456a92216 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ControlSetDaiFormatRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ControlSetDaiFormatRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::SetDaiFormat {
                            payload: req,
                            responder: ControlSetDaiFormatResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x2a90a9d2958b997b => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::CodecStart {
                            responder: ControlCodecStartResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x387297bb6bcad25f => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::CodecStop {
                            responder: ControlCodecStopResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x49840db00a698996 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::Reset {
                            responder: ControlResetResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(ControlRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(ControlRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A `Control` instance is used to change the settings or state of an audio
/// device. It also creates the ring buffer used to pass audio data between
/// client and device. Each `Control` is associated with an initialized audio
/// device; conversely each device is associated with either zero or one
/// `Control` at any time.
#[derive(Debug)]
pub enum ControlRequest {
    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    GetElements { responder: ControlGetElementsResponder },
    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    WatchElementState { processing_element_id: u64, responder: ControlWatchElementStateResponder },
    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    GetTopologies { responder: ControlGetTopologiesResponder },
    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    WatchTopology { responder: ControlWatchTopologyResponder },
    /// Controls a processing element using a unique ElementId returned by `GetElements`.
    /// Note that `SettableElementState` is a subset of `ElementState`, because some fields returned
    /// from `WatchElementState` (e.g. `latency`) can only be observed (not set) by the client.
    ///
    /// Returns `ZX_ERR_INVALID_ARGS` if the `processing_element_id` does not match an id returned
    /// by `GetElements` or the type of `SettableTypeSpecificElementState` does not
    /// match the `ElementType` of the processing element returned by
    /// `GetElements` for this id.
    /// The driver may return `ZX_ERR_INVALID_ARGS` if the `state` values are invalid, i.e. any
    /// of the values violates rules specified in this protocol, e.g. trying to change an
    /// `EQUALIZER` processing element's `EqualizerBandState` `frequency` when this processing
    /// element did not advertise `CAN_CONTROL_FREQUENCY` in its `supported_controls`.
    ///
    /// `SetElementState` may be called before or after non-`SignalProcessing` protocol
    /// calls. If called after non-`SignalProcessing` protocol calls then
    /// `SetElementState` may or may not require renegotiation of the driver state as
    /// reached with calls of the protocol composing `SignalProcessing`, e.g. `Dai`.
    /// For instance, `SetElementState` changing an `AGL` processing element's parameters
    /// may not require renegotiation of the `Dai` state because changing a gain parameter usually
    /// does not change the set of supported audio formats.
    /// By contrast, if `SetElementState` changes the parameters of a `CONNECTION_POINT`
    /// element, the change may require renegotiation because it may invalidate the set of
    /// supported formats returned in a previous `GetDaiFormats` `Dai` protocol call.
    ///
    /// It is the driver's job to determine when renegotiation is required. If renegotiation is
    /// required, then `SetElementState` must return `ZX_ERR_BAD_STATE` and the client must
    /// close the protocol channel such that the protocol negotiations are started over.
    /// The client then must make the `SetElementState` call that returned
    /// `ZX_ERR_BAD_STATE` before any non-`SignalProcessing` protocol calls.
    SetElementState {
        processing_element_id: u64,
        state: fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
        responder: ControlSetElementStateResponder,
    },
    /// Sets the topology to be used using an id to the vector returned by `GetTopologies`.
    /// The current topology is communicated by `WatchTopology` responses. To change which topology
    /// is active, a client uses `SetTopology`.
    /// If the specified `topology_id` is not within the`topologies` returned by `GetTopologies`,
    /// this call will return `ZX_ERR_INVALID_ARGS`.
    /// If `GetTopologies` returns only one `Topology`, `SetTopology` is optional and has no effect.
    ///
    /// `SetTopology` may be called before or after non-`SignalProcessing` protocol calls.
    /// If called after non-`SignalProcessing` protocol calls, then `SetTopology` may return
    /// `ZX_ERR_BAD_STATE` to indicate that the operation can not proceed without renegotiation of
    /// the driver state. See `SetElementState` for further discussion.
    SetTopology { topology_id: u64, responder: ControlSetTopologyResponder },
    /// Change the device's overall gain state.
    ///
    /// Should only be called for StreamConfig devices.
    SetGain { payload: ControlSetGainRequest, responder: ControlSetGainResponder },
    /// Create the ring buffer used to pass audio to/from this device. If the device is
    /// Composite, then the targeted RING_BUFFER ENDPOINT must be identified by `element_id`.
    ///
    /// Should only be called for Composite and StreamConfig devices.
    CreateRingBuffer {
        payload: ControlCreateRingBufferRequest,
        responder: ControlCreateRingBufferResponder,
    },
    /// Set the wire format for the digital interconnect connected to this Codec endpoint.
    /// This method returns information related to the format that was set, including delay values.
    /// If the device is Composite, then the targeted DAI_INTERCONNECT ENDPOINT must be identified
    /// by `element_id`.
    ///
    /// Should only be called for Codec and Composite devices.
    SetDaiFormat { payload: ControlSetDaiFormatRequest, responder: ControlSetDaiFormatResponder },
    /// Start the Codec hardware. If successful, this returns after the Codec was started and
    /// `start_time` indicates the time when the hardware started. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    CodecStart { responder: ControlCodecStartResponder },
    /// Stop the Codec hardware. If successful, this returns after the Codec was stopped and
    /// `stop_time` indicates the time when the hardware stopped. Note that the Codec's DaiFormat
    /// must be set (by a successful `SetDaiFormat` call) before calling this method.
    ///
    /// Should only be called for Codec devices.
    CodecStop { responder: ControlCodecStopResponder },
    /// Reset the hardware -- stopping the hardware, releasing any ring buffers, and clearing any
    /// DaiFormats or RingBufferFormats that were set.
    ///
    /// This method returns when the hardware reset is complete.
    /// After calling this method, the device is still controlled, but any ring buffers must be
    /// re-created and re-started.
    /// For devices with DAI_INTERCONNECTs (such as Codecs and some Composites), `SetDaiFormat` and
    /// `CodecStart` must be called again (in that order) to return the interconnect to the active
    /// operational mode.
    /// As applicable, `SetTopology` and `SetElementState` must also be called.
    ///
    /// Should only be called for Codec and Composite devices.
    Reset { responder: ControlResetResponder },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: ControlControlHandle,
        method_type: fidl::MethodType,
    },
}

impl ControlRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_get_elements(self) -> Option<(ControlGetElementsResponder)> {
        if let ControlRequest::GetElements { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_element_state(self) -> Option<(u64, ControlWatchElementStateResponder)> {
        if let ControlRequest::WatchElementState { processing_element_id, responder } = self {
            Some((processing_element_id, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_topologies(self) -> Option<(ControlGetTopologiesResponder)> {
        if let ControlRequest::GetTopologies { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_topology(self) -> Option<(ControlWatchTopologyResponder)> {
        if let ControlRequest::WatchTopology { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_element_state(
        self,
    ) -> Option<(
        u64,
        fidl_fuchsia_hardware_audio_signalprocessing::SettableElementState,
        ControlSetElementStateResponder,
    )> {
        if let ControlRequest::SetElementState { processing_element_id, state, responder } = self {
            Some((processing_element_id, state, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_topology(self) -> Option<(u64, ControlSetTopologyResponder)> {
        if let ControlRequest::SetTopology { topology_id, responder } = self {
            Some((topology_id, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_gain(self) -> Option<(ControlSetGainRequest, ControlSetGainResponder)> {
        if let ControlRequest::SetGain { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_create_ring_buffer(
        self,
    ) -> Option<(ControlCreateRingBufferRequest, ControlCreateRingBufferResponder)> {
        if let ControlRequest::CreateRingBuffer { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_set_dai_format(
        self,
    ) -> Option<(ControlSetDaiFormatRequest, ControlSetDaiFormatResponder)> {
        if let ControlRequest::SetDaiFormat { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_codec_start(self) -> Option<(ControlCodecStartResponder)> {
        if let ControlRequest::CodecStart { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_codec_stop(self) -> Option<(ControlCodecStopResponder)> {
        if let ControlRequest::CodecStop { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_reset(self) -> Option<(ControlResetResponder)> {
        if let ControlRequest::Reset { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ControlRequest::GetElements { .. } => "get_elements",
            ControlRequest::WatchElementState { .. } => "watch_element_state",
            ControlRequest::GetTopologies { .. } => "get_topologies",
            ControlRequest::WatchTopology { .. } => "watch_topology",
            ControlRequest::SetElementState { .. } => "set_element_state",
            ControlRequest::SetTopology { .. } => "set_topology",
            ControlRequest::SetGain { .. } => "set_gain",
            ControlRequest::CreateRingBuffer { .. } => "create_ring_buffer",
            ControlRequest::SetDaiFormat { .. } => "set_dai_format",
            ControlRequest::CodecStart { .. } => "codec_start",
            ControlRequest::CodecStop { .. } => "codec_stop",
            ControlRequest::Reset { .. } => "reset",
            ControlRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            ControlRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct ControlControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for ControlControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ControlControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlGetElementsResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlGetElementsResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlGetElementsResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlGetElementsResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
            i32,
        >>(
            result.map(|processing_elements| (processing_elements,)),
            self.tx_id,
            0x1b14ff4adf5dc6f8,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlWatchElementStateResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlWatchElementStateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlWatchElementStateResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlWatchElementStateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(state);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(state);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse>(
            (state,),
            self.tx_id,
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlGetTopologiesResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlGetTopologiesResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlGetTopologiesResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlGetTopologiesResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
            i32,
        >>(
            result.map(|topologies| (topologies,)),
            self.tx_id,
            0x73ffb73af24d30b6,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlWatchTopologyResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlWatchTopologyResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlWatchTopologyResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlWatchTopologyResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut topology_id: u64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(topology_id);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut topology_id: u64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(topology_id);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut topology_id: u64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
        >>(
            fidl::encoding::Flexible::new((topology_id,)),
            self.tx_id,
            0x66d172acdb36a729,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlSetElementStateResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlSetElementStateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlSetElementStateResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlSetElementStateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>>(
                result,
                self.tx_id,
                0x38c3b2d4bae698f4,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlSetTopologyResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlSetTopologyResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlSetTopologyResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlSetTopologyResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>>(
                result,
                self.tx_id,
                0x1d9a7f9b8fee790c,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlSetGainResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlSetGainResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlSetGainResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlSetGainResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlSetGainResponse, ControlSetGainError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlSetGainResponse, ControlSetGainError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlSetGainResponse, ControlSetGainError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlSetGainResponse,
            ControlSetGainError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x4354ee814b05da66,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlCreateRingBufferResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlCreateRingBufferResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlCreateRingBufferResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlCreateRingBufferResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<ControlCreateRingBufferResponse, ControlCreateRingBufferError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<ControlCreateRingBufferResponse, ControlCreateRingBufferError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<ControlCreateRingBufferResponse, ControlCreateRingBufferError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlCreateRingBufferResponse,
            ControlCreateRingBufferError,
        >>(
            fidl::encoding::FlexibleResult::new(result.as_mut().map_err(|e| *e)),
            self.tx_id,
            0x7462941cedb333db,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlSetDaiFormatResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlSetDaiFormatResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlSetDaiFormatResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlSetDaiFormatResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlSetDaiFormatResponse, ControlSetDaiFormatError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlSetDaiFormatResponse, ControlSetDaiFormatError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlSetDaiFormatResponse, ControlSetDaiFormatError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlSetDaiFormatResponse,
            ControlSetDaiFormatError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x1d84f5a456a92216,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlCodecStartResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlCodecStartResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlCodecStartResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlCodecStartResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlCodecStartResponse, ControlCodecStartError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlCodecStartResponse, ControlCodecStartError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlCodecStartResponse, ControlCodecStartError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlCodecStartResponse,
            ControlCodecStartError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x2a90a9d2958b997b,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlCodecStopResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlCodecStopResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlCodecStopResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlCodecStopResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlCodecStopResponse, ControlCodecStopError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlCodecStopResponse, ControlCodecStopError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlCodecStopResponse, ControlCodecStopError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlCodecStopResponse,
            ControlCodecStopError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x387297bb6bcad25f,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlResetResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlResetResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlResetResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlResetResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlResetResponse, ControlResetError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlResetResponse, ControlResetError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlResetResponse, ControlResetError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlResetResponse,
            ControlResetError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x49840db00a698996,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ControlCreatorMarker;

impl fidl::endpoints::ProtocolMarker for ControlCreatorMarker {
    type Proxy = ControlCreatorProxy;
    type RequestStream = ControlCreatorRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ControlCreatorSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.audio.device.ControlCreator";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ControlCreatorMarker {}
pub type ControlCreatorCreateResult = Result<ControlCreatorCreateResponse, ControlCreatorError>;

pub trait ControlCreatorProxyInterface: Send + Sync {
    type CreateResponseFut: std::future::Future<Output = Result<ControlCreatorCreateResult, fidl::Error>>
        + Send;
    fn r#create(&self, payload: ControlCreatorCreateRequest) -> Self::CreateResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ControlCreatorSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ControlCreatorSynchronousProxy {
    type Proxy = ControlCreatorProxy;
    type Protocol = ControlCreatorMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ControlCreatorSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <ControlCreatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ControlCreatorEvent, fidl::Error> {
        ControlCreatorEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Create a `Control` for the specified device.
    pub fn r#create(
        &self,
        mut payload: ControlCreatorCreateRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlCreatorCreateResult, fidl::Error> {
        let _response =
            self.client
                .send_query::<ControlCreatorCreateRequest, fidl::encoding::FlexibleResultType<
                    ControlCreatorCreateResponse,
                    ControlCreatorError,
                >>(
                    &mut payload,
                    0x341bdc9f49103a31,
                    fidl::encoding::DynamicFlags::FLEXIBLE,
                    ___deadline,
                )?
                .into_result::<ControlCreatorMarker>("create")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct ControlCreatorProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ControlCreatorProxy {
    type Protocol = ControlCreatorMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ControlCreatorProxy {
    /// Create a new Proxy for fuchsia.audio.device/ControlCreator.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ControlCreatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ControlCreatorEventStream {
        ControlCreatorEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Create a `Control` for the specified device.
    pub fn r#create(
        &self,
        mut payload: ControlCreatorCreateRequest,
    ) -> fidl::client::QueryResponseFut<
        ControlCreatorCreateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlCreatorProxyInterface::r#create(self, payload)
    }
}

impl ControlCreatorProxyInterface for ControlCreatorProxy {
    type CreateResponseFut = fidl::client::QueryResponseFut<
        ControlCreatorCreateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#create(&self, mut payload: ControlCreatorCreateRequest) -> Self::CreateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlCreatorCreateResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ControlCreatorCreateResponse,
                    ControlCreatorError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x341bdc9f49103a31,
            >(_buf?)?
            .into_result::<ControlCreatorMarker>("create")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<ControlCreatorCreateRequest, ControlCreatorCreateResult>(
                &mut payload,
                0x341bdc9f49103a31,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }
}

pub struct ControlCreatorEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ControlCreatorEventStream {}

impl futures::stream::FusedStream for ControlCreatorEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ControlCreatorEventStream {
    type Item = Result<ControlCreatorEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ControlCreatorEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ControlCreatorEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl ControlCreatorEvent {
    /// Decodes a message buffer as a [`ControlCreatorEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ControlCreatorEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(ControlCreatorEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name:
                    <ControlCreatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/ControlCreator.
pub struct ControlCreatorRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ControlCreatorRequestStream {}

impl futures::stream::FusedStream for ControlCreatorRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ControlCreatorRequestStream {
    type Protocol = ControlCreatorMarker;
    type ControlHandle = ControlCreatorControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ControlCreatorControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ControlCreatorRequestStream {
    type Item = Result<ControlCreatorRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ControlCreatorRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x341bdc9f49103a31 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ControlCreatorCreateRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ControlCreatorCreateRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            ControlCreatorControlHandle { inner: this.inner.clone() };
                        Ok(ControlCreatorRequest::Create {
                            payload: req,
                            responder: ControlCreatorCreateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(ControlCreatorRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlCreatorControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(ControlCreatorRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlCreatorControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ControlCreatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A `ControlCreator` interface creates `Control` instances. Each `Control` binds
/// to a single device. A device can only be bound to one `Control` at any time.
#[derive(Debug)]
pub enum ControlCreatorRequest {
    /// Create a `Control` for the specified device.
    Create { payload: ControlCreatorCreateRequest, responder: ControlCreatorCreateResponder },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: ControlCreatorControlHandle,
        method_type: fidl::MethodType,
    },
}

impl ControlCreatorRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_create(
        self,
    ) -> Option<(ControlCreatorCreateRequest, ControlCreatorCreateResponder)> {
        if let ControlCreatorRequest::Create { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ControlCreatorRequest::Create { .. } => "create",
            ControlCreatorRequest::_UnknownMethod {
                method_type: fidl::MethodType::OneWay, ..
            } => "unknown one-way method",
            ControlCreatorRequest::_UnknownMethod {
                method_type: fidl::MethodType::TwoWay, ..
            } => "unknown two-way method",
        }
    }
}

#[derive(Debug, Clone)]
pub struct ControlCreatorControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for ControlCreatorControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ControlCreatorControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlCreatorCreateResponder {
    control_handle: std::mem::ManuallyDrop<ControlCreatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlCreatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlCreatorCreateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlCreatorCreateResponder {
    type ControlHandle = ControlCreatorControlHandle;

    fn control_handle(&self) -> &ControlCreatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlCreatorCreateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ControlCreatorCreateResponse, ControlCreatorError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ControlCreatorCreateResponse, ControlCreatorError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ControlCreatorCreateResponse, ControlCreatorError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ControlCreatorCreateResponse,
            ControlCreatorError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x341bdc9f49103a31,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ObserverMarker;

impl fidl::endpoints::ProtocolMarker for ObserverMarker {
    type Proxy = ObserverProxy;
    type RequestStream = ObserverRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ObserverSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) Observer";
}
pub type ObserverWatchGainStateResult =
    Result<ObserverWatchGainStateResponse, ObserverWatchGainStateError>;
pub type ObserverWatchPlugStateResult =
    Result<ObserverWatchPlugStateResponse, ObserverWatchPlugStateError>;
pub type ObserverGetReferenceClockResult =
    Result<ObserverGetReferenceClockResponse, ObserverGetReferenceClockError>;

pub trait ObserverProxyInterface: Send + Sync {
    type GetElementsResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
                fidl::Error,
            >,
        > + Send;
    fn r#get_elements(&self) -> Self::GetElementsResponseFut;
    type WatchElementStateResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
                fidl::Error,
            >,
        > + Send;
    fn r#watch_element_state(
        &self,
        processing_element_id: u64,
    ) -> Self::WatchElementStateResponseFut;
    type GetTopologiesResponseFut: std::future::Future<
            Output = Result<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
                fidl::Error,
            >,
        > + Send;
    fn r#get_topologies(&self) -> Self::GetTopologiesResponseFut;
    type WatchTopologyResponseFut: std::future::Future<Output = Result<u64, fidl::Error>> + Send;
    fn r#watch_topology(&self) -> Self::WatchTopologyResponseFut;
    type WatchGainStateResponseFut: std::future::Future<Output = Result<ObserverWatchGainStateResult, fidl::Error>>
        + Send;
    fn r#watch_gain_state(&self) -> Self::WatchGainStateResponseFut;
    type WatchPlugStateResponseFut: std::future::Future<Output = Result<ObserverWatchPlugStateResult, fidl::Error>>
        + Send;
    fn r#watch_plug_state(&self) -> Self::WatchPlugStateResponseFut;
    type GetReferenceClockResponseFut: std::future::Future<Output = Result<ObserverGetReferenceClockResult, fidl::Error>>
        + Send;
    fn r#get_reference_clock(&self) -> Self::GetReferenceClockResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ObserverSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ObserverSynchronousProxy {
    type Proxy = ObserverProxy;
    type Protocol = ObserverMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ObserverSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <ObserverMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ObserverEvent, fidl::Error> {
        ObserverEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    pub fn r#get_elements(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult, fidl::Error>
    {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::ResultType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
                i32,
            >>(
                (), 0x1b14ff4adf5dc6f8, fidl::encoding::DynamicFlags::empty(), ___deadline
            )?;
        Ok(_response.map(|x| x.processing_elements))
    }

    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    pub fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ElementState, fidl::Error> {
        let _response = self.client.send_query::<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse,
        >(
            (processing_element_id,),
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.state)
    }

    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    pub fn r#get_topologies(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult, fidl::Error>
    {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::ResultType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
                i32,
            >>(
                (), 0x73ffb73af24d30b6, fidl::encoding::DynamicFlags::empty(), ___deadline
            )?;
        Ok(_response.map(|x| x.topologies))
    }

    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    pub fn r#watch_topology(&self, ___deadline: zx::MonotonicInstant) -> Result<u64, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleType<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
            >>(
                (), 0x66d172acdb36a729, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ObserverMarker>("watch_topology")?;
        Ok(_response.topology_id)
    }

    /// Request notification of any change to the device's gain state.
    ///
    /// Note: this only notifies of changes to controls described in the
    /// device's`Info` table (`GainCapabilities` specifically). Use
    /// `WatchElementState` for gain processing exposed as `SignalProcessing`
    /// (`GetTopologies`, `GetElements`).
    ///
    /// Should only be called for StreamConfig devices.
    pub fn r#watch_gain_state(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ObserverWatchGainStateResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                ObserverWatchGainStateResponse,
                ObserverWatchGainStateError,
            >>(
                (), 0x4c4b65e6205b302a, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ObserverMarker>("watch_gain_state")?;
        Ok(_response.map(|x| x))
    }

    /// Request notification of any change to the device's plug state. When
    /// called for the first time, it will return immediately.
    ///
    /// Should only be called for Codec or StreamConfig devices.
    pub fn r#watch_plug_state(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ObserverWatchPlugStateResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                ObserverWatchPlugStateResponse,
                ObserverWatchPlugStateError,
            >>(
                (), 0x6312bce495d2907a, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ObserverMarker>("watch_plug_state")?;
        Ok(_response.map(|x| x))
    }

    /// Retrieve the device's reference clock.
    ///
    /// This clock will be in the domain specified in the device's `Info` table.
    ///
    /// Should only be called for Composite or StreamConfig devices.
    pub fn r#get_reference_clock(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ObserverGetReferenceClockResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                ObserverGetReferenceClockResponse,
                ObserverGetReferenceClockError,
            >>(
                (), 0x3819c5e0f9574c39, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<ObserverMarker>("get_reference_clock")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct ObserverProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ObserverProxy {
    type Protocol = ObserverMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ObserverProxy {
    /// Create a new Proxy for fuchsia.audio.device/Observer.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ObserverMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ObserverEventStream {
        ObserverEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    pub fn r#get_elements(
        &self,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#get_elements(self)
    }

    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    pub fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#watch_element_state(self, processing_element_id)
    }

    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    pub fn r#get_topologies(
        &self,
    ) -> fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#get_topologies(self)
    }

    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    pub fn r#watch_topology(
        &self,
    ) -> fidl::client::QueryResponseFut<u64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        ObserverProxyInterface::r#watch_topology(self)
    }

    /// Request notification of any change to the device's gain state.
    ///
    /// Note: this only notifies of changes to controls described in the
    /// device's`Info` table (`GainCapabilities` specifically). Use
    /// `WatchElementState` for gain processing exposed as `SignalProcessing`
    /// (`GetTopologies`, `GetElements`).
    ///
    /// Should only be called for StreamConfig devices.
    pub fn r#watch_gain_state(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ObserverWatchGainStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#watch_gain_state(self)
    }

    /// Request notification of any change to the device's plug state. When
    /// called for the first time, it will return immediately.
    ///
    /// Should only be called for Codec or StreamConfig devices.
    pub fn r#watch_plug_state(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ObserverWatchPlugStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#watch_plug_state(self)
    }

    /// Retrieve the device's reference clock.
    ///
    /// This clock will be in the domain specified in the device's `Info` table.
    ///
    /// Should only be called for Composite or StreamConfig devices.
    pub fn r#get_reference_clock(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ObserverGetReferenceClockResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ObserverProxyInterface::r#get_reference_clock(self)
    }
}

impl ObserverProxyInterface for ObserverProxy {
    type GetElementsResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_elements(&self) -> Self::GetElementsResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
                    i32,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1b14ff4adf5dc6f8,
            >(_buf?)?;
            Ok(_response.map(|x| x.processing_elements))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResult,
        >(
            (),
            0x1b14ff4adf5dc6f8,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WatchElementStateResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_element_state(
        &self,
        mut processing_element_id: u64,
    ) -> Self::WatchElementStateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<fidl_fuchsia_hardware_audio_signalprocessing::ElementState, fidl::Error>
        {
            let _response = fidl::client::decode_transaction_body::<
                fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x524da8772a69056f,
            >(_buf?)?;
            Ok(_response.state)
        }
        self.client.send_query_and_decode::<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest,
            fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
        >(
            (processing_element_id,),
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type GetTopologiesResponseFut = fidl::client::QueryResponseFut<
        fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_topologies(&self) -> Self::GetTopologiesResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
            fidl::Error,
        > {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
                    i32,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x73ffb73af24d30b6,
            >(_buf?)?;
            Ok(_response.map(|x| x.topologies))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResult,
        >(
            (),
            0x73ffb73af24d30b6,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WatchTopologyResponseFut =
        fidl::client::QueryResponseFut<u64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#watch_topology(&self) -> Self::WatchTopologyResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<u64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleType<
                    fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x66d172acdb36a729,
            >(_buf?)?
            .into_result::<ObserverMarker>("watch_topology")?;
            Ok(_response.topology_id)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, u64>(
            (),
            0x66d172acdb36a729,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type WatchGainStateResponseFut = fidl::client::QueryResponseFut<
        ObserverWatchGainStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_gain_state(&self) -> Self::WatchGainStateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ObserverWatchGainStateResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ObserverWatchGainStateResponse,
                    ObserverWatchGainStateError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4c4b65e6205b302a,
            >(_buf?)?
            .into_result::<ObserverMarker>("watch_gain_state")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<fidl::encoding::EmptyPayload, ObserverWatchGainStateResult>(
                (),
                0x4c4b65e6205b302a,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }

    type WatchPlugStateResponseFut = fidl::client::QueryResponseFut<
        ObserverWatchPlugStateResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_plug_state(&self) -> Self::WatchPlugStateResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ObserverWatchPlugStateResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ObserverWatchPlugStateResponse,
                    ObserverWatchPlugStateError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x6312bce495d2907a,
            >(_buf?)?
            .into_result::<ObserverMarker>("watch_plug_state")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<fidl::encoding::EmptyPayload, ObserverWatchPlugStateResult>(
                (),
                0x6312bce495d2907a,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }

    type GetReferenceClockResponseFut = fidl::client::QueryResponseFut<
        ObserverGetReferenceClockResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_reference_clock(&self) -> Self::GetReferenceClockResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ObserverGetReferenceClockResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ObserverGetReferenceClockResponse,
                    ObserverGetReferenceClockError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x3819c5e0f9574c39,
            >(_buf?)?
            .into_result::<ObserverMarker>("get_reference_clock")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<fidl::encoding::EmptyPayload, ObserverGetReferenceClockResult>(
                (),
                0x3819c5e0f9574c39,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }
}

pub struct ObserverEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ObserverEventStream {}

impl futures::stream::FusedStream for ObserverEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ObserverEventStream {
    type Item = Result<ObserverEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ObserverEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ObserverEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl ObserverEvent {
    /// Decodes a message buffer as a [`ObserverEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ObserverEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(ObserverEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ObserverMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/Observer.
pub struct ObserverRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ObserverRequestStream {}

impl futures::stream::FusedStream for ObserverRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ObserverRequestStream {
    type Protocol = ObserverMarker;
    type ControlHandle = ObserverControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ObserverControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ObserverRequestStream {
    type Item = Result<ObserverRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ObserverRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x1b14ff4adf5dc6f8 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::GetElements {
                            responder: ObserverGetElementsResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x524da8772a69056f => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::WatchElementState {
                            processing_element_id: req.processing_element_id,

                            responder: ObserverWatchElementStateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x73ffb73af24d30b6 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::GetTopologies {
                            responder: ObserverGetTopologiesResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x66d172acdb36a729 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::WatchTopology {
                            responder: ObserverWatchTopologyResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x4c4b65e6205b302a => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::WatchGainState {
                            responder: ObserverWatchGainStateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x6312bce495d2907a => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::WatchPlugState {
                            responder: ObserverWatchPlugStateResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x3819c5e0f9574c39 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ObserverControlHandle { inner: this.inner.clone() };
                        Ok(ObserverRequest::GetReferenceClock {
                            responder: ObserverGetReferenceClockResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(ObserverRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ObserverControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(ObserverRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ObserverControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ObserverMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// `Observer` instances are used to learn the capabilities and state of an
/// audio device, and to stay informed as its state changes over time. Each
/// `Observer` is associated with an initialized audio device. An audio device
/// may be observed by multiple `Observer` instances.
#[derive(Debug)]
pub enum ObserverRequest {
    /// Returns a vector of supported processing elements.
    /// Must return one or more processing elements, or `ZX_ERR_NOT_SUPPORTED`.
    /// If `GetTopologies` returns one or more topologies, then `GetElements` must return one or
    /// more elements.
    GetElements { responder: ObserverGetElementsResponder },
    /// Get the processing element state via a hanging get.
    /// For a given `processing_element_id`, the driver will reply to the first `WatchElementState`
    /// sent by the client. The driver will not respond to subsequent client `WatchElementState`
    /// calls for a given `processing_element_id` until any field of the `Element` table changes
    /// from what was most recently reported for that `processing_element_id`.
    ///
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchElementState` for this client
    /// and processing_element_id.
    WatchElementState { processing_element_id: u64, responder: ObserverWatchElementStateResponder },
    /// Returns a vector of supported topologies.
    /// Must return one or more topologies, or `ZX_ERR_NOT_SUPPORTED`.
    /// If more than one topology is returned, then the client may choose any of the topologies from
    /// the list with `SetTopology`.
    /// If only one topology is returned, then the topology definition is informational only since
    /// the one and only topology used can't be changed with `SetTopology`.
    /// If `GetElements` returns one or more elements, then `GetTopologies` must return one or
    /// more topologies.
    GetTopologies { responder: ObserverGetTopologiesResponder },
    /// Get the current topology via a hanging get.
    /// The driver will immediately reply to the first `WatchTopology` sent by each client. The
    /// driver will not respond to subsequent `WatchTopology` calls from that client until the
    /// signal-processing topology changes, which occurs as a result of a `SetTopology` call.
    /// The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this
    /// method is called again while there is already a pending `WatchTopology` for this client.
    WatchTopology { responder: ObserverWatchTopologyResponder },
    /// Request notification of any change to the device's gain state.
    ///
    /// Note: this only notifies of changes to controls described in the
    /// device's`Info` table (`GainCapabilities` specifically). Use
    /// `WatchElementState` for gain processing exposed as `SignalProcessing`
    /// (`GetTopologies`, `GetElements`).
    ///
    /// Should only be called for StreamConfig devices.
    WatchGainState { responder: ObserverWatchGainStateResponder },
    /// Request notification of any change to the device's plug state. When
    /// called for the first time, it will return immediately.
    ///
    /// Should only be called for Codec or StreamConfig devices.
    WatchPlugState { responder: ObserverWatchPlugStateResponder },
    /// Retrieve the device's reference clock.
    ///
    /// This clock will be in the domain specified in the device's `Info` table.
    ///
    /// Should only be called for Composite or StreamConfig devices.
    GetReferenceClock { responder: ObserverGetReferenceClockResponder },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: ObserverControlHandle,
        method_type: fidl::MethodType,
    },
}

impl ObserverRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_get_elements(self) -> Option<(ObserverGetElementsResponder)> {
        if let ObserverRequest::GetElements { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_element_state(self) -> Option<(u64, ObserverWatchElementStateResponder)> {
        if let ObserverRequest::WatchElementState { processing_element_id, responder } = self {
            Some((processing_element_id, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_topologies(self) -> Option<(ObserverGetTopologiesResponder)> {
        if let ObserverRequest::GetTopologies { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_topology(self) -> Option<(ObserverWatchTopologyResponder)> {
        if let ObserverRequest::WatchTopology { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_gain_state(self) -> Option<(ObserverWatchGainStateResponder)> {
        if let ObserverRequest::WatchGainState { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_plug_state(self) -> Option<(ObserverWatchPlugStateResponder)> {
        if let ObserverRequest::WatchPlugState { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_reference_clock(self) -> Option<(ObserverGetReferenceClockResponder)> {
        if let ObserverRequest::GetReferenceClock { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ObserverRequest::GetElements { .. } => "get_elements",
            ObserverRequest::WatchElementState { .. } => "watch_element_state",
            ObserverRequest::GetTopologies { .. } => "get_topologies",
            ObserverRequest::WatchTopology { .. } => "watch_topology",
            ObserverRequest::WatchGainState { .. } => "watch_gain_state",
            ObserverRequest::WatchPlugState { .. } => "watch_plug_state",
            ObserverRequest::GetReferenceClock { .. } => "get_reference_clock",
            ObserverRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            ObserverRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct ObserverControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for ObserverControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ObserverControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverGetElementsResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverGetElementsResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverGetElementsResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverGetElementsResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Element], i32>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetElementsResponse,
            i32,
        >>(
            result.map(|processing_elements| (processing_elements,)),
            self.tx_id,
            0x1b14ff4adf5dc6f8,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverWatchElementStateResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverWatchElementStateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverWatchElementStateResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverWatchElementStateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(state);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(state);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut state: &fidl_fuchsia_hardware_audio_signalprocessing::ElementState,
    ) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchElementStateResponse>(
            (state,),
            self.tx_id,
            0x524da8772a69056f,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverGetTopologiesResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverGetTopologiesResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverGetTopologiesResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverGetTopologiesResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&[fidl_fuchsia_hardware_audio_signalprocessing::Topology], i32>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderGetTopologiesResponse,
            i32,
        >>(
            result.map(|topologies| (topologies,)),
            self.tx_id,
            0x73ffb73af24d30b6,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverWatchTopologyResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverWatchTopologyResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverWatchTopologyResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverWatchTopologyResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut topology_id: u64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(topology_id);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut topology_id: u64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(topology_id);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut topology_id: u64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleType<
            fidl_fuchsia_hardware_audio_signalprocessing::ReaderWatchTopologyResponse,
        >>(
            fidl::encoding::Flexible::new((topology_id,)),
            self.tx_id,
            0x66d172acdb36a729,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverWatchGainStateResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverWatchGainStateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverWatchGainStateResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverWatchGainStateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ObserverWatchGainStateResponse, ObserverWatchGainStateError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ObserverWatchGainStateResponse, ObserverWatchGainStateError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ObserverWatchGainStateResponse, ObserverWatchGainStateError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ObserverWatchGainStateResponse,
            ObserverWatchGainStateError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x4c4b65e6205b302a,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverWatchPlugStateResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverWatchPlugStateResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverWatchPlugStateResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverWatchPlugStateResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ObserverWatchPlugStateResponse, ObserverWatchPlugStateError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ObserverWatchPlugStateResponse, ObserverWatchPlugStateError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ObserverWatchPlugStateResponse, ObserverWatchPlugStateError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ObserverWatchPlugStateResponse,
            ObserverWatchPlugStateError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x6312bce495d2907a,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ObserverGetReferenceClockResponder {
    control_handle: std::mem::ManuallyDrop<ObserverControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ObserverControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ObserverGetReferenceClockResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ObserverGetReferenceClockResponder {
    type ControlHandle = ObserverControlHandle;

    fn control_handle(&self) -> &ObserverControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ObserverGetReferenceClockResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<ObserverGetReferenceClockResponse, ObserverGetReferenceClockError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<ObserverGetReferenceClockResponse, ObserverGetReferenceClockError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<ObserverGetReferenceClockResponse, ObserverGetReferenceClockError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ObserverGetReferenceClockResponse,
            ObserverGetReferenceClockError,
        >>(
            fidl::encoding::FlexibleResult::new(result.as_mut().map_err(|e| *e)),
            self.tx_id,
            0x3819c5e0f9574c39,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ProviderMarker;

impl fidl::endpoints::ProtocolMarker for ProviderMarker {
    type Proxy = ProviderProxy;
    type RequestStream = ProviderRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ProviderSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.audio.device.Provider";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ProviderMarker {}
pub type ProviderAddDeviceResult = Result<ProviderAddDeviceResponse, ProviderAddDeviceError>;

pub trait ProviderProxyInterface: Send + Sync {
    type AddDeviceResponseFut: std::future::Future<Output = Result<ProviderAddDeviceResult, fidl::Error>>
        + Send;
    fn r#add_device(&self, payload: ProviderAddDeviceRequest) -> Self::AddDeviceResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ProviderSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ProviderSynchronousProxy {
    type Proxy = ProviderProxy;
    type Protocol = ProviderMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ProviderSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <ProviderMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ProviderEvent, fidl::Error> {
        ProviderEvent::decode(self.client.wait_for_event(deadline)?)
    }

    pub fn r#add_device(
        &self,
        mut payload: ProviderAddDeviceRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ProviderAddDeviceResult, fidl::Error> {
        let _response =
            self.client
                .send_query::<ProviderAddDeviceRequest, fidl::encoding::FlexibleResultType<
                    ProviderAddDeviceResponse,
                    ProviderAddDeviceError,
                >>(
                    &mut payload,
                    0x685fdfd91937758b,
                    fidl::encoding::DynamicFlags::FLEXIBLE,
                    ___deadline,
                )?
                .into_result::<ProviderMarker>("add_device")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct ProviderProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ProviderProxy {
    type Protocol = ProviderMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ProviderProxy {
    /// Create a new Proxy for fuchsia.audio.device/Provider.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ProviderMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ProviderEventStream {
        ProviderEventStream { event_receiver: self.client.take_event_receiver() }
    }

    pub fn r#add_device(
        &self,
        mut payload: ProviderAddDeviceRequest,
    ) -> fidl::client::QueryResponseFut<
        ProviderAddDeviceResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ProviderProxyInterface::r#add_device(self, payload)
    }
}

impl ProviderProxyInterface for ProviderProxy {
    type AddDeviceResponseFut = fidl::client::QueryResponseFut<
        ProviderAddDeviceResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#add_device(&self, mut payload: ProviderAddDeviceRequest) -> Self::AddDeviceResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ProviderAddDeviceResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    ProviderAddDeviceResponse,
                    ProviderAddDeviceError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x685fdfd91937758b,
            >(_buf?)?
            .into_result::<ProviderMarker>("add_device")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<ProviderAddDeviceRequest, ProviderAddDeviceResult>(
            &mut payload,
            0x685fdfd91937758b,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }
}

pub struct ProviderEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ProviderEventStream {}

impl futures::stream::FusedStream for ProviderEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ProviderEventStream {
    type Item = Result<ProviderEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ProviderEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ProviderEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl ProviderEvent {
    /// Decodes a message buffer as a [`ProviderEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ProviderEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(ProviderEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ProviderMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/Provider.
pub struct ProviderRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ProviderRequestStream {}

impl futures::stream::FusedStream for ProviderRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ProviderRequestStream {
    type Protocol = ProviderMarker;
    type ControlHandle = ProviderControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ProviderControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ProviderRequestStream {
    type Item = Result<ProviderRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ProviderRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x685fdfd91937758b => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderAddDeviceRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderAddDeviceRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::AddDevice {
                            payload: req,
                            responder: ProviderAddDeviceResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(ProviderRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ProviderControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(ProviderRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ProviderControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ProviderMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// Use the `Provider` interface to manually add devices that do not use the devfs
/// mechanism. (Devices that use devfs are automatically added, upon detection.)
#[derive(Debug)]
pub enum ProviderRequest {
    AddDevice {
        payload: ProviderAddDeviceRequest,
        responder: ProviderAddDeviceResponder,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: ProviderControlHandle,
        method_type: fidl::MethodType,
    },
}

impl ProviderRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_add_device(self) -> Option<(ProviderAddDeviceRequest, ProviderAddDeviceResponder)> {
        if let ProviderRequest::AddDevice { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ProviderRequest::AddDevice { .. } => "add_device",
            ProviderRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            ProviderRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct ProviderControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for ProviderControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ProviderControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ProviderAddDeviceResponder {
    control_handle: std::mem::ManuallyDrop<ProviderControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ProviderControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ProviderAddDeviceResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ProviderAddDeviceResponder {
    type ControlHandle = ProviderControlHandle;

    fn control_handle(&self) -> &ProviderControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ProviderAddDeviceResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&ProviderAddDeviceResponse, ProviderAddDeviceError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&ProviderAddDeviceResponse, ProviderAddDeviceError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&ProviderAddDeviceResponse, ProviderAddDeviceError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            ProviderAddDeviceResponse,
            ProviderAddDeviceError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x685fdfd91937758b,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct RegistryMarker;

impl fidl::endpoints::ProtocolMarker for RegistryMarker {
    type Proxy = RegistryProxy;
    type RequestStream = RegistryRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = RegistrySynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.audio.device.Registry";
}
impl fidl::endpoints::DiscoverableProtocolMarker for RegistryMarker {}
pub type RegistryWatchDevicesAddedResult =
    Result<RegistryWatchDevicesAddedResponse, RegistryWatchDevicesAddedError>;
pub type RegistryWatchDeviceRemovedResult =
    Result<RegistryWatchDeviceRemovedResponse, RegistryWatchDeviceRemovedError>;
pub type RegistryCreateObserverResult =
    Result<RegistryCreateObserverResponse, RegistryCreateObserverError>;

pub trait RegistryProxyInterface: Send + Sync {
    type WatchDevicesAddedResponseFut: std::future::Future<Output = Result<RegistryWatchDevicesAddedResult, fidl::Error>>
        + Send;
    fn r#watch_devices_added(&self) -> Self::WatchDevicesAddedResponseFut;
    type WatchDeviceRemovedResponseFut: std::future::Future<Output = Result<RegistryWatchDeviceRemovedResult, fidl::Error>>
        + Send;
    fn r#watch_device_removed(&self) -> Self::WatchDeviceRemovedResponseFut;
    type CreateObserverResponseFut: std::future::Future<Output = Result<RegistryCreateObserverResult, fidl::Error>>
        + Send;
    fn r#create_observer(
        &self,
        payload: RegistryCreateObserverRequest,
    ) -> Self::CreateObserverResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct RegistrySynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for RegistrySynchronousProxy {
    type Proxy = RegistryProxy;
    type Protocol = RegistryMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl RegistrySynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <RegistryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<RegistryEvent, fidl::Error> {
        RegistryEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Register for notification when one or more devices are added.
    /// The `devices` vector will always contain at least one `Info` entry.
    pub fn r#watch_devices_added(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RegistryWatchDevicesAddedResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                RegistryWatchDevicesAddedResponse,
                RegistryWatchDevicesAddedError,
            >>(
                (), 0x562ca31f7c149def, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<RegistryMarker>("watch_devices_added")?;
        Ok(_response.map(|x| x))
    }

    /// Register for notification when an (active, added) device is removed.
    /// Because the method only notifies of one removal, upon completion it
    /// should immediately be re-called, in case other removals have occurred.
    /// Calls to this method will pend until the removal of a device that was
    /// included in a previous `WatchDevicesAdded` response.
    pub fn r#watch_device_removed(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RegistryWatchDeviceRemovedResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                RegistryWatchDeviceRemovedResponse,
                RegistryWatchDeviceRemovedError,
            >>(
                (), 0x6e67aabc99a502af, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<RegistryMarker>("watch_device_removed")?;
        Ok(_response.map(|x| x))
    }

    /// Request an `Observer` for the specified device.
    pub fn r#create_observer(
        &self,
        mut payload: RegistryCreateObserverRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RegistryCreateObserverResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<RegistryCreateObserverRequest, fidl::encoding::FlexibleResultType<
                RegistryCreateObserverResponse,
                RegistryCreateObserverError,
            >>(
                &mut payload,
                0x577bc322eb8d2bd1,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                ___deadline,
            )?
            .into_result::<RegistryMarker>("create_observer")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct RegistryProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for RegistryProxy {
    type Protocol = RegistryMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl RegistryProxy {
    /// Create a new Proxy for fuchsia.audio.device/Registry.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <RegistryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> RegistryEventStream {
        RegistryEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Register for notification when one or more devices are added.
    /// The `devices` vector will always contain at least one `Info` entry.
    pub fn r#watch_devices_added(
        &self,
    ) -> fidl::client::QueryResponseFut<
        RegistryWatchDevicesAddedResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RegistryProxyInterface::r#watch_devices_added(self)
    }

    /// Register for notification when an (active, added) device is removed.
    /// Because the method only notifies of one removal, upon completion it
    /// should immediately be re-called, in case other removals have occurred.
    /// Calls to this method will pend until the removal of a device that was
    /// included in a previous `WatchDevicesAdded` response.
    pub fn r#watch_device_removed(
        &self,
    ) -> fidl::client::QueryResponseFut<
        RegistryWatchDeviceRemovedResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RegistryProxyInterface::r#watch_device_removed(self)
    }

    /// Request an `Observer` for the specified device.
    pub fn r#create_observer(
        &self,
        mut payload: RegistryCreateObserverRequest,
    ) -> fidl::client::QueryResponseFut<
        RegistryCreateObserverResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RegistryProxyInterface::r#create_observer(self, payload)
    }
}

impl RegistryProxyInterface for RegistryProxy {
    type WatchDevicesAddedResponseFut = fidl::client::QueryResponseFut<
        RegistryWatchDevicesAddedResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_devices_added(&self) -> Self::WatchDevicesAddedResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RegistryWatchDevicesAddedResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    RegistryWatchDevicesAddedResponse,
                    RegistryWatchDevicesAddedError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x562ca31f7c149def,
            >(_buf?)?
            .into_result::<RegistryMarker>("watch_devices_added")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<fidl::encoding::EmptyPayload, RegistryWatchDevicesAddedResult>(
                (),
                0x562ca31f7c149def,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }

    type WatchDeviceRemovedResponseFut = fidl::client::QueryResponseFut<
        RegistryWatchDeviceRemovedResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_device_removed(&self) -> Self::WatchDeviceRemovedResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RegistryWatchDeviceRemovedResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    RegistryWatchDeviceRemovedResponse,
                    RegistryWatchDeviceRemovedError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x6e67aabc99a502af,
            >(_buf?)?
            .into_result::<RegistryMarker>("watch_device_removed")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            RegistryWatchDeviceRemovedResult,
        >(
            (),
            0x6e67aabc99a502af,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type CreateObserverResponseFut = fidl::client::QueryResponseFut<
        RegistryCreateObserverResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#create_observer(
        &self,
        mut payload: RegistryCreateObserverRequest,
    ) -> Self::CreateObserverResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RegistryCreateObserverResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    RegistryCreateObserverResponse,
                    RegistryCreateObserverError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x577bc322eb8d2bd1,
            >(_buf?)?
            .into_result::<RegistryMarker>("create_observer")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<RegistryCreateObserverRequest, RegistryCreateObserverResult>(
                &mut payload,
                0x577bc322eb8d2bd1,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }
}

pub struct RegistryEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for RegistryEventStream {}

impl futures::stream::FusedStream for RegistryEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for RegistryEventStream {
    type Item = Result<RegistryEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(RegistryEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum RegistryEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl RegistryEvent {
    /// Decodes a message buffer as a [`RegistryEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<RegistryEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(RegistryEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <RegistryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/Registry.
pub struct RegistryRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for RegistryRequestStream {}

impl futures::stream::FusedStream for RegistryRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for RegistryRequestStream {
    type Protocol = RegistryMarker;
    type ControlHandle = RegistryControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        RegistryControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for RegistryRequestStream {
    type Item = Result<RegistryRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled RegistryRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x562ca31f7c149def => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RegistryControlHandle { inner: this.inner.clone() };
                        Ok(RegistryRequest::WatchDevicesAdded {
                            responder: RegistryWatchDevicesAddedResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x6e67aabc99a502af => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RegistryControlHandle { inner: this.inner.clone() };
                        Ok(RegistryRequest::WatchDeviceRemoved {
                            responder: RegistryWatchDeviceRemovedResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x577bc322eb8d2bd1 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            RegistryCreateObserverRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<RegistryCreateObserverRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RegistryControlHandle { inner: this.inner.clone() };
                        Ok(RegistryRequest::CreateObserver {
                            payload: req,
                            responder: RegistryCreateObserverResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(RegistryRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: RegistryControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(RegistryRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: RegistryControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <RegistryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// `Registry` instances notify clients as devices arrive and depart, and they
/// create observers (see `Observer`) that notify of more detailed state changes.
#[derive(Debug)]
pub enum RegistryRequest {
    /// Register for notification when one or more devices are added.
    /// The `devices` vector will always contain at least one `Info` entry.
    WatchDevicesAdded { responder: RegistryWatchDevicesAddedResponder },
    /// Register for notification when an (active, added) device is removed.
    /// Because the method only notifies of one removal, upon completion it
    /// should immediately be re-called, in case other removals have occurred.
    /// Calls to this method will pend until the removal of a device that was
    /// included in a previous `WatchDevicesAdded` response.
    WatchDeviceRemoved { responder: RegistryWatchDeviceRemovedResponder },
    /// Request an `Observer` for the specified device.
    CreateObserver {
        payload: RegistryCreateObserverRequest,
        responder: RegistryCreateObserverResponder,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: RegistryControlHandle,
        method_type: fidl::MethodType,
    },
}

impl RegistryRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_devices_added(self) -> Option<(RegistryWatchDevicesAddedResponder)> {
        if let RegistryRequest::WatchDevicesAdded { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_device_removed(self) -> Option<(RegistryWatchDeviceRemovedResponder)> {
        if let RegistryRequest::WatchDeviceRemoved { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_create_observer(
        self,
    ) -> Option<(RegistryCreateObserverRequest, RegistryCreateObserverResponder)> {
        if let RegistryRequest::CreateObserver { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            RegistryRequest::WatchDevicesAdded { .. } => "watch_devices_added",
            RegistryRequest::WatchDeviceRemoved { .. } => "watch_device_removed",
            RegistryRequest::CreateObserver { .. } => "create_observer",
            RegistryRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            RegistryRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct RegistryControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for RegistryControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl RegistryControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RegistryWatchDevicesAddedResponder {
    control_handle: std::mem::ManuallyDrop<RegistryControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RegistryControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RegistryWatchDevicesAddedResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RegistryWatchDevicesAddedResponder {
    type ControlHandle = RegistryControlHandle;

    fn control_handle(&self) -> &RegistryControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RegistryWatchDevicesAddedResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RegistryWatchDevicesAddedResponse, RegistryWatchDevicesAddedError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RegistryWatchDevicesAddedResponse, RegistryWatchDevicesAddedError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RegistryWatchDevicesAddedResponse, RegistryWatchDevicesAddedError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RegistryWatchDevicesAddedResponse,
            RegistryWatchDevicesAddedError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x562ca31f7c149def,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RegistryWatchDeviceRemovedResponder {
    control_handle: std::mem::ManuallyDrop<RegistryControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RegistryControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RegistryWatchDeviceRemovedResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RegistryWatchDeviceRemovedResponder {
    type ControlHandle = RegistryControlHandle;

    fn control_handle(&self) -> &RegistryControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RegistryWatchDeviceRemovedResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RegistryWatchDeviceRemovedResponse, RegistryWatchDeviceRemovedError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RegistryWatchDeviceRemovedResponse, RegistryWatchDeviceRemovedError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RegistryWatchDeviceRemovedResponse, RegistryWatchDeviceRemovedError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RegistryWatchDeviceRemovedResponse,
            RegistryWatchDeviceRemovedError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x6e67aabc99a502af,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RegistryCreateObserverResponder {
    control_handle: std::mem::ManuallyDrop<RegistryControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RegistryControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RegistryCreateObserverResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RegistryCreateObserverResponder {
    type ControlHandle = RegistryControlHandle;

    fn control_handle(&self) -> &RegistryControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RegistryCreateObserverResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RegistryCreateObserverResponse, RegistryCreateObserverError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RegistryCreateObserverResponse, RegistryCreateObserverError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RegistryCreateObserverResponse, RegistryCreateObserverError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RegistryCreateObserverResponse,
            RegistryCreateObserverError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x577bc322eb8d2bd1,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct RingBufferMarker;

impl fidl::endpoints::ProtocolMarker for RingBufferMarker {
    type Proxy = RingBufferProxy;
    type RequestStream = RingBufferRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = RingBufferSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) RingBuffer";
}
pub type RingBufferSetActiveChannelsResult =
    Result<RingBufferSetActiveChannelsResponse, RingBufferSetActiveChannelsError>;
pub type RingBufferStartResult = Result<RingBufferStartResponse, RingBufferStartError>;
pub type RingBufferStopResult = Result<RingBufferStopResponse, RingBufferStopError>;
pub type RingBufferWatchDelayInfoResult =
    Result<RingBufferWatchDelayInfoResponse, RingBufferWatchDelayInfoError>;

pub trait RingBufferProxyInterface: Send + Sync {
    type SetActiveChannelsResponseFut: std::future::Future<Output = Result<RingBufferSetActiveChannelsResult, fidl::Error>>
        + Send;
    fn r#set_active_channels(
        &self,
        payload: &RingBufferSetActiveChannelsRequest,
    ) -> Self::SetActiveChannelsResponseFut;
    type StartResponseFut: std::future::Future<Output = Result<RingBufferStartResult, fidl::Error>>
        + Send;
    fn r#start(&self, payload: &RingBufferStartRequest) -> Self::StartResponseFut;
    type StopResponseFut: std::future::Future<Output = Result<RingBufferStopResult, fidl::Error>>
        + Send;
    fn r#stop(&self, payload: &RingBufferStopRequest) -> Self::StopResponseFut;
    type WatchDelayInfoResponseFut: std::future::Future<Output = Result<RingBufferWatchDelayInfoResult, fidl::Error>>
        + Send;
    fn r#watch_delay_info(&self) -> Self::WatchDelayInfoResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct RingBufferSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for RingBufferSynchronousProxy {
    type Proxy = RingBufferProxy;
    type Protocol = RingBufferMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl RingBufferSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <RingBufferMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<RingBufferEvent, fidl::Error> {
        RingBufferEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Request that specific individual channels be powered down/up, if the
    /// device supports this. This is intended for idle power conservation.
    ///
    /// Channels are specified by bitmask; the least significant bit corresponds
    /// to channel 0. Each bit not set indicates that the channel can be
    /// deactivated. `SetActiveChannels` does not change how a ring buffer
    /// responds to `Start`/`Stop`, specifically with regards to position.
    ///
    /// Devices are not required to obey `SetActiveChannels`. For example, they
    /// are not required to zero-out an input stream's inactive channels, and
    /// data written to inactive channels of an output stream's ring buffer may
    /// still be played.
    ///
    /// If not called, then by default all channels will be active.
    pub fn r#set_active_channels(
        &self,
        mut payload: &RingBufferSetActiveChannelsRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RingBufferSetActiveChannelsResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<RingBufferSetActiveChannelsRequest, fidl::encoding::FlexibleResultType<
                RingBufferSetActiveChannelsResponse,
                RingBufferSetActiveChannelsError,
            >>(
                payload, 0x4276c43e4a3b59ee, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<RingBufferMarker>("set_active_channels")?;
        Ok(_response.map(|x| x))
    }

    /// Start the ring buffer, beginning at the first frame of the ring buffer.
    pub fn r#start(
        &self,
        mut payload: &RingBufferStartRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RingBufferStartResult, fidl::Error> {
        let _response = self.client.send_query::<
            RingBufferStartRequest,
            fidl::encoding::FlexibleResultType<RingBufferStartResponse, RingBufferStartError>,
        >(
            payload,
            0x5365a8609dc2dc5,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<RingBufferMarker>("start")?;
        Ok(_response.map(|x| x))
    }

    /// Stop the ring buffer.
    pub fn r#stop(
        &self,
        mut payload: &RingBufferStopRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RingBufferStopResult, fidl::Error> {
        let _response = self.client.send_query::<
            RingBufferStopRequest,
            fidl::encoding::FlexibleResultType<RingBufferStopResponse, RingBufferStopError>,
        >(
            payload,
            0x5a238810af11e6e1,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<RingBufferMarker>("stop")?;
        Ok(_response.map(|x| x))
    }

    /// Request delay information via a hanging get. The RingBuffer will respond
    /// immediately to the first `WatchDelayInfo` call. Subsequent calls will
    /// only be completed when the delay info has changed from previously
    /// communicated values.
    pub fn r#watch_delay_info(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<RingBufferWatchDelayInfoResult, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, fidl::encoding::FlexibleResultType<
                RingBufferWatchDelayInfoResponse,
                RingBufferWatchDelayInfoError,
            >>(
                (), 0x6d1dc5a928f38ad6, fidl::encoding::DynamicFlags::FLEXIBLE, ___deadline
            )?
            .into_result::<RingBufferMarker>("watch_delay_info")?;
        Ok(_response.map(|x| x))
    }
}

#[derive(Debug, Clone)]
pub struct RingBufferProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for RingBufferProxy {
    type Protocol = RingBufferMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl RingBufferProxy {
    /// Create a new Proxy for fuchsia.audio.device/RingBuffer.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <RingBufferMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> RingBufferEventStream {
        RingBufferEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Request that specific individual channels be powered down/up, if the
    /// device supports this. This is intended for idle power conservation.
    ///
    /// Channels are specified by bitmask; the least significant bit corresponds
    /// to channel 0. Each bit not set indicates that the channel can be
    /// deactivated. `SetActiveChannels` does not change how a ring buffer
    /// responds to `Start`/`Stop`, specifically with regards to position.
    ///
    /// Devices are not required to obey `SetActiveChannels`. For example, they
    /// are not required to zero-out an input stream's inactive channels, and
    /// data written to inactive channels of an output stream's ring buffer may
    /// still be played.
    ///
    /// If not called, then by default all channels will be active.
    pub fn r#set_active_channels(
        &self,
        mut payload: &RingBufferSetActiveChannelsRequest,
    ) -> fidl::client::QueryResponseFut<
        RingBufferSetActiveChannelsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RingBufferProxyInterface::r#set_active_channels(self, payload)
    }

    /// Start the ring buffer, beginning at the first frame of the ring buffer.
    pub fn r#start(
        &self,
        mut payload: &RingBufferStartRequest,
    ) -> fidl::client::QueryResponseFut<
        RingBufferStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RingBufferProxyInterface::r#start(self, payload)
    }

    /// Stop the ring buffer.
    pub fn r#stop(
        &self,
        mut payload: &RingBufferStopRequest,
    ) -> fidl::client::QueryResponseFut<
        RingBufferStopResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RingBufferProxyInterface::r#stop(self, payload)
    }

    /// Request delay information via a hanging get. The RingBuffer will respond
    /// immediately to the first `WatchDelayInfo` call. Subsequent calls will
    /// only be completed when the delay info has changed from previously
    /// communicated values.
    pub fn r#watch_delay_info(
        &self,
    ) -> fidl::client::QueryResponseFut<
        RingBufferWatchDelayInfoResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        RingBufferProxyInterface::r#watch_delay_info(self)
    }
}

impl RingBufferProxyInterface for RingBufferProxy {
    type SetActiveChannelsResponseFut = fidl::client::QueryResponseFut<
        RingBufferSetActiveChannelsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#set_active_channels(
        &self,
        mut payload: &RingBufferSetActiveChannelsRequest,
    ) -> Self::SetActiveChannelsResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RingBufferSetActiveChannelsResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    RingBufferSetActiveChannelsResponse,
                    RingBufferSetActiveChannelsError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4276c43e4a3b59ee,
            >(_buf?)?
            .into_result::<RingBufferMarker>("set_active_channels")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            RingBufferSetActiveChannelsRequest,
            RingBufferSetActiveChannelsResult,
        >(
            payload,
            0x4276c43e4a3b59ee,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type StartResponseFut = fidl::client::QueryResponseFut<
        RingBufferStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#start(&self, mut payload: &RingBufferStartRequest) -> Self::StartResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RingBufferStartResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<RingBufferStartResponse, RingBufferStartError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5365a8609dc2dc5,
            >(_buf?)?
            .into_result::<RingBufferMarker>("start")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<RingBufferStartRequest, RingBufferStartResult>(
            payload,
            0x5365a8609dc2dc5,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type StopResponseFut = fidl::client::QueryResponseFut<
        RingBufferStopResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#stop(&self, mut payload: &RingBufferStopRequest) -> Self::StopResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RingBufferStopResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<RingBufferStopResponse, RingBufferStopError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5a238810af11e6e1,
            >(_buf?)?
            .into_result::<RingBufferMarker>("stop")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<RingBufferStopRequest, RingBufferStopResult>(
            payload,
            0x5a238810af11e6e1,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }

    type WatchDelayInfoResponseFut = fidl::client::QueryResponseFut<
        RingBufferWatchDelayInfoResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch_delay_info(&self) -> Self::WatchDelayInfoResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<RingBufferWatchDelayInfoResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    RingBufferWatchDelayInfoResponse,
                    RingBufferWatchDelayInfoError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x6d1dc5a928f38ad6,
            >(_buf?)?
            .into_result::<RingBufferMarker>("watch_delay_info")?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<fidl::encoding::EmptyPayload, RingBufferWatchDelayInfoResult>(
                (),
                0x6d1dc5a928f38ad6,
                fidl::encoding::DynamicFlags::FLEXIBLE,
                _decode,
            )
    }
}

pub struct RingBufferEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for RingBufferEventStream {}

impl futures::stream::FusedStream for RingBufferEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for RingBufferEventStream {
    type Item = Result<RingBufferEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(RingBufferEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum RingBufferEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl RingBufferEvent {
    /// Decodes a message buffer as a [`RingBufferEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<RingBufferEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(RingBufferEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <RingBufferMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.audio.device/RingBuffer.
pub struct RingBufferRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for RingBufferRequestStream {}

impl futures::stream::FusedStream for RingBufferRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for RingBufferRequestStream {
    type Protocol = RingBufferMarker;
    type ControlHandle = RingBufferControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        RingBufferControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for RingBufferRequestStream {
    type Item = Result<RingBufferRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled RingBufferRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x4276c43e4a3b59ee => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            RingBufferSetActiveChannelsRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<RingBufferSetActiveChannelsRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RingBufferControlHandle { inner: this.inner.clone() };
                        Ok(RingBufferRequest::SetActiveChannels {
                            payload: req,
                            responder: RingBufferSetActiveChannelsResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x5365a8609dc2dc5 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            RingBufferStartRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<RingBufferStartRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RingBufferControlHandle { inner: this.inner.clone() };
                        Ok(RingBufferRequest::Start {
                            payload: req,
                            responder: RingBufferStartResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x5a238810af11e6e1 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            RingBufferStopRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<RingBufferStopRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RingBufferControlHandle { inner: this.inner.clone() };
                        Ok(RingBufferRequest::Stop {
                            payload: req,
                            responder: RingBufferStopResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x6d1dc5a928f38ad6 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = RingBufferControlHandle { inner: this.inner.clone() };
                        Ok(RingBufferRequest::WatchDelayInfo {
                            responder: RingBufferWatchDelayInfoResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(RingBufferRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: RingBufferControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(RingBufferRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: RingBufferControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <RingBufferMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A `RingBuffer` instance controls data flow for the associated audio stream.
#[derive(Debug)]
pub enum RingBufferRequest {
    /// Request that specific individual channels be powered down/up, if the
    /// device supports this. This is intended for idle power conservation.
    ///
    /// Channels are specified by bitmask; the least significant bit corresponds
    /// to channel 0. Each bit not set indicates that the channel can be
    /// deactivated. `SetActiveChannels` does not change how a ring buffer
    /// responds to `Start`/`Stop`, specifically with regards to position.
    ///
    /// Devices are not required to obey `SetActiveChannels`. For example, they
    /// are not required to zero-out an input stream's inactive channels, and
    /// data written to inactive channels of an output stream's ring buffer may
    /// still be played.
    ///
    /// If not called, then by default all channels will be active.
    SetActiveChannels {
        payload: RingBufferSetActiveChannelsRequest,
        responder: RingBufferSetActiveChannelsResponder,
    },
    /// Start the ring buffer, beginning at the first frame of the ring buffer.
    Start { payload: RingBufferStartRequest, responder: RingBufferStartResponder },
    /// Stop the ring buffer.
    Stop { payload: RingBufferStopRequest, responder: RingBufferStopResponder },
    /// Request delay information via a hanging get. The RingBuffer will respond
    /// immediately to the first `WatchDelayInfo` call. Subsequent calls will
    /// only be completed when the delay info has changed from previously
    /// communicated values.
    WatchDelayInfo { responder: RingBufferWatchDelayInfoResponder },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: RingBufferControlHandle,
        method_type: fidl::MethodType,
    },
}

impl RingBufferRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_set_active_channels(
        self,
    ) -> Option<(RingBufferSetActiveChannelsRequest, RingBufferSetActiveChannelsResponder)> {
        if let RingBufferRequest::SetActiveChannels { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_start(self) -> Option<(RingBufferStartRequest, RingBufferStartResponder)> {
        if let RingBufferRequest::Start { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_stop(self) -> Option<(RingBufferStopRequest, RingBufferStopResponder)> {
        if let RingBufferRequest::Stop { payload, responder } = self {
            Some((payload, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_watch_delay_info(self) -> Option<(RingBufferWatchDelayInfoResponder)> {
        if let RingBufferRequest::WatchDelayInfo { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            RingBufferRequest::SetActiveChannels { .. } => "set_active_channels",
            RingBufferRequest::Start { .. } => "start",
            RingBufferRequest::Stop { .. } => "stop",
            RingBufferRequest::WatchDelayInfo { .. } => "watch_delay_info",
            RingBufferRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            RingBufferRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct RingBufferControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for RingBufferControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl RingBufferControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RingBufferSetActiveChannelsResponder {
    control_handle: std::mem::ManuallyDrop<RingBufferControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RingBufferControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RingBufferSetActiveChannelsResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RingBufferSetActiveChannelsResponder {
    type ControlHandle = RingBufferControlHandle;

    fn control_handle(&self) -> &RingBufferControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RingBufferSetActiveChannelsResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RingBufferSetActiveChannelsResponse, RingBufferSetActiveChannelsError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RingBufferSetActiveChannelsResponse, RingBufferSetActiveChannelsError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RingBufferSetActiveChannelsResponse, RingBufferSetActiveChannelsError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RingBufferSetActiveChannelsResponse,
            RingBufferSetActiveChannelsError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x4276c43e4a3b59ee,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RingBufferStartResponder {
    control_handle: std::mem::ManuallyDrop<RingBufferControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RingBufferControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RingBufferStartResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RingBufferStartResponder {
    type ControlHandle = RingBufferControlHandle;

    fn control_handle(&self) -> &RingBufferControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RingBufferStartResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RingBufferStartResponse, RingBufferStartError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RingBufferStartResponse, RingBufferStartError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RingBufferStartResponse, RingBufferStartError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RingBufferStartResponse,
            RingBufferStartError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x5365a8609dc2dc5,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RingBufferStopResponder {
    control_handle: std::mem::ManuallyDrop<RingBufferControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RingBufferControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RingBufferStopResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RingBufferStopResponder {
    type ControlHandle = RingBufferControlHandle;

    fn control_handle(&self) -> &RingBufferControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RingBufferStopResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RingBufferStopResponse, RingBufferStopError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RingBufferStopResponse, RingBufferStopError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RingBufferStopResponse, RingBufferStopError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RingBufferStopResponse,
            RingBufferStopError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x5a238810af11e6e1,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct RingBufferWatchDelayInfoResponder {
    control_handle: std::mem::ManuallyDrop<RingBufferControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`RingBufferControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for RingBufferWatchDelayInfoResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for RingBufferWatchDelayInfoResponder {
    type ControlHandle = RingBufferControlHandle;

    fn control_handle(&self) -> &RingBufferControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl RingBufferWatchDelayInfoResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(
        self,
        mut result: Result<&RingBufferWatchDelayInfoResponse, RingBufferWatchDelayInfoError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<&RingBufferWatchDelayInfoResponse, RingBufferWatchDelayInfoError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<&RingBufferWatchDelayInfoResponse, RingBufferWatchDelayInfoError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            RingBufferWatchDelayInfoResponse,
            RingBufferWatchDelayInfoError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x6d1dc5a928f38ad6,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for ControlCodecStartError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCodecStartError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlCodecStartError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlCodecStartError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlCodecStopError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCodecStopError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlCodecStopError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlCodecStopError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlCreateRingBufferError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCreateRingBufferError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlCreateRingBufferError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlCreateRingBufferError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlCreatorError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCreatorError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlCreatorError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlCreatorError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlResetError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlResetError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlResetError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlResetError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlSetDaiFormatError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetDaiFormatError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlSetDaiFormatError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlSetDaiFormatError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ControlSetGainError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetGainError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ControlSetGainError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlSetGainError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for DeviceType {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for DeviceType {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for DeviceType {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for DeviceType {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ObserverGetReferenceClockError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ObserverGetReferenceClockError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ObserverGetReferenceClockError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ObserverGetReferenceClockError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ObserverWatchGainStateError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ObserverWatchGainStateError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ObserverWatchGainStateError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ObserverWatchGainStateError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ObserverWatchPlugStateError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ObserverWatchPlugStateError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ObserverWatchPlugStateError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ObserverWatchPlugStateError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for PlugDetectCapabilities {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for PlugDetectCapabilities {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for PlugDetectCapabilities
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for PlugDetectCapabilities
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for PlugState {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for PlugState {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for PlugState {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for PlugState {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ProviderAddDeviceError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for ProviderAddDeviceError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for ProviderAddDeviceError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ProviderAddDeviceError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RegistryCreateObserverError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryCreateObserverError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RegistryCreateObserverError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryCreateObserverError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RegistryWatchDeviceRemovedError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryWatchDeviceRemovedError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RegistryWatchDeviceRemovedError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryWatchDeviceRemovedError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RegistryWatchDevicesAddedError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryWatchDevicesAddedError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RegistryWatchDevicesAddedError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryWatchDevicesAddedError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RingBufferSetActiveChannelsError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferSetActiveChannelsError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RingBufferSetActiveChannelsError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferSetActiveChannelsError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RingBufferStartError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStartError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RingBufferStartError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for RingBufferStartError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RingBufferStopError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStopError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RingBufferStopError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for RingBufferStopError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RingBufferWatchDelayInfoError {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferWatchDelayInfoError {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for RingBufferWatchDelayInfoError
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferWatchDelayInfoError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }

    impl ChannelAttributes {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.max_frequency {
                return 2;
            }
            if let Some(_) = self.min_frequency {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ChannelAttributes {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ChannelAttributes {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ChannelAttributes, D>
        for &ChannelAttributes
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ChannelAttributes>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.min_frequency.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.max_frequency.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ChannelAttributes {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.min_frequency.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.max_frequency.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ChannelSet {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.attributes {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ChannelSet {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ChannelSet {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ChannelSet, D>
        for &ChannelSet
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ChannelSet>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<ChannelAttributes, 64>, D>(
            self.attributes.as_ref().map(<fidl::encoding::Vector<ChannelAttributes, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ChannelSet {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<ChannelAttributes, 64> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.attributes.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<ChannelAttributes, 64>, D),
                );
                fidl::decode!(fidl::encoding::Vector<ChannelAttributes, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCreateRingBufferRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.ring_buffer_server {
                return 3;
            }
            if let Some(_) = self.options {
                return 2;
            }
            if let Some(_) = self.element_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ControlCreateRingBufferRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCreateRingBufferRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ControlCreateRingBufferRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ControlCreateRingBufferRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCreateRingBufferRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.element_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                RingBufferOptions,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.options
                    .as_ref()
                    .map(<RingBufferOptions as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<RingBufferMarker>>, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.ring_buffer_server.as_mut().map(<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<RingBufferMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ControlCreateRingBufferRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.element_id.get_or_insert_with(|| {
                    fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <RingBufferOptions as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.options.get_or_insert_with(|| {
                    fidl::new_empty!(
                        RingBufferOptions,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    RingBufferOptions,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Endpoint<
                    fidl::endpoints::ServerEnd<RingBufferMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.ring_buffer_server.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<RingBufferMarker>>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<RingBufferMarker>>,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCreatorCreateRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.control_server {
                return 2;
            }
            if let Some(_) = self.token_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ControlCreatorCreateRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCreatorCreateRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ControlCreatorCreateRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ControlCreatorCreateRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCreatorCreateRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.token_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ControlMarker>>, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.control_server.as_mut().map(<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ControlMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ControlCreatorCreateRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.token_id.get_or_insert_with(|| {
                    fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Endpoint<
                    fidl::endpoints::ServerEnd<ControlMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.control_server.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ControlMarker>>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ControlMarker>>,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCreatorCreateResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCreatorCreateResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCreatorCreateResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlCreatorCreateResponse, D> for &ControlCreatorCreateResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCreatorCreateResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlCreatorCreateResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlSetDaiFormatRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.dai_format {
                return 2;
            }
            if let Some(_) = self.element_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetDaiFormatRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlSetDaiFormatRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlSetDaiFormatRequest, D> for &ControlSetDaiFormatRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlSetDaiFormatRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.element_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl_fuchsia_hardware_audio::DaiFormat, D>(
            self.dai_format.as_ref().map(<fidl_fuchsia_hardware_audio::DaiFormat as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlSetDaiFormatRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.element_id.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl_fuchsia_hardware_audio::DaiFormat as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.dai_format.get_or_insert_with(|| {
                    fidl::new_empty!(fidl_fuchsia_hardware_audio::DaiFormat, D)
                });
                fidl::decode!(
                    fidl_fuchsia_hardware_audio::DaiFormat,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlSetGainRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.target_state {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetGainRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlSetGainRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ControlSetGainRequest, D>
        for &ControlSetGainRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlSetGainRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<GainState, D>(
                self.target_state
                    .as_ref()
                    .map(<GainState as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlSetGainRequest {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <GainState as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.target_state.get_or_insert_with(|| fidl::new_empty!(GainState, D));
                fidl::decode!(GainState, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCodecStartResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.start_time {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCodecStartResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCodecStartResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlCodecStartResponse, D> for &ControlCodecStartResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCodecStartResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.start_time.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlCodecStartResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.start_time.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCodecStopResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.stop_time {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlCodecStopResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCodecStopResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlCodecStopResponse, D> for &ControlCodecStopResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCodecStopResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.stop_time.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlCodecStopResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.stop_time.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlCreateRingBufferResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.ring_buffer {
                return 2;
            }
            if let Some(_) = self.properties {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ControlCreateRingBufferResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlCreateRingBufferResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ControlCreateRingBufferResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ControlCreateRingBufferResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlCreateRingBufferResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                RingBufferProperties,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.properties
                    .as_ref()
                    .map(<RingBufferProperties as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl_fuchsia_audio::RingBuffer, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.ring_buffer.as_mut().map(<fidl_fuchsia_audio::RingBuffer as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ControlCreateRingBufferResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <RingBufferProperties as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.properties.get_or_insert_with(|| {
                    fidl::new_empty!(
                        RingBufferProperties,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    RingBufferProperties,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl_fuchsia_audio::RingBuffer as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.ring_buffer.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl_fuchsia_audio::RingBuffer,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl_fuchsia_audio::RingBuffer,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlResetResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlResetResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlResetResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ControlResetResponse, D>
        for &ControlResetResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlResetResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ControlResetResponse {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlSetDaiFormatResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.state {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetDaiFormatResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlSetDaiFormatResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlSetDaiFormatResponse, D> for &ControlSetDaiFormatResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlSetDaiFormatResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl_fuchsia_hardware_audio::CodecFormatInfo, D>(
            self.state.as_ref().map(<fidl_fuchsia_hardware_audio::CodecFormatInfo as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlSetDaiFormatResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl_fuchsia_hardware_audio::CodecFormatInfo as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.state.get_or_insert_with(|| {
                    fidl::new_empty!(fidl_fuchsia_hardware_audio::CodecFormatInfo, D)
                });
                fidl::decode!(
                    fidl_fuchsia_hardware_audio::CodecFormatInfo,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ControlSetGainResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ControlSetGainResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlSetGainResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ControlSetGainResponse, D> for &ControlSetGainResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlSetGainResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ControlSetGainResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl DelayInfo {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.external_delay {
                return 2;
            }
            if let Some(_) = self.internal_delay {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for DelayInfo {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for DelayInfo {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<DelayInfo, D>
        for &DelayInfo
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DelayInfo>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.internal_delay.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.external_delay.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for DelayInfo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.internal_delay.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.external_delay.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ElementDaiFormatSet {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.format_sets {
                return 2;
            }
            if let Some(_) = self.element_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ElementDaiFormatSet {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ElementDaiFormatSet {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ElementDaiFormatSet, D>
        for &ElementDaiFormatSet
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ElementDaiFormatSet>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.element_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<fidl_fuchsia_hardware_audio::DaiSupportedFormats, 64>, D>(
            self.format_sets.as_ref().map(<fidl::encoding::Vector<fidl_fuchsia_hardware_audio::DaiSupportedFormats, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ElementDaiFormatSet {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.element_id.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<
                    fidl_fuchsia_hardware_audio::DaiSupportedFormats,
                    64,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.format_sets.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio::DaiSupportedFormats, 64>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio::DaiSupportedFormats, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ElementRingBufferFormatSet {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.format_sets {
                return 2;
            }
            if let Some(_) = self.element_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ElementRingBufferFormatSet {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ElementRingBufferFormatSet {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ElementRingBufferFormatSet, D> for &ElementRingBufferFormatSet
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ElementRingBufferFormatSet>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.element_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<PcmFormatSet, 64>, D>(
            self.format_sets.as_ref().map(<fidl::encoding::Vector<PcmFormatSet, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ElementRingBufferFormatSet
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.element_id.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<PcmFormatSet, 64> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.format_sets.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<PcmFormatSet, 64>, D),
                );
                fidl::decode!(fidl::encoding::Vector<PcmFormatSet, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl GainCapabilities {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.can_agc {
                return 5;
            }
            if let Some(_) = self.can_mute {
                return 4;
            }
            if let Some(_) = self.gain_step_db {
                return 3;
            }
            if let Some(_) = self.max_gain_db {
                return 2;
            }
            if let Some(_) = self.min_gain_db {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for GainCapabilities {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for GainCapabilities {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<GainCapabilities, D>
        for &GainCapabilities
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<GainCapabilities>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<f32, D>(
                self.min_gain_db.as_ref().map(<f32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<f32, D>(
                self.max_gain_db.as_ref().map(<f32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<f32, D>(
                self.gain_step_db.as_ref().map(<f32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<bool, D>(
                self.can_mute.as_ref().map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<bool, D>(
                self.can_agc.as_ref().map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for GainCapabilities {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.min_gain_db.get_or_insert_with(|| fidl::new_empty!(f32, D));
                fidl::decode!(f32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.max_gain_db.get_or_insert_with(|| fidl::new_empty!(f32, D));
                fidl::decode!(f32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.gain_step_db.get_or_insert_with(|| fidl::new_empty!(f32, D));
                fidl::decode!(f32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <bool as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.can_mute.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <bool as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.can_agc.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl GainState {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.agc_enabled {
                return 3;
            }
            if let Some(_) = self.muted {
                return 2;
            }
            if let Some(_) = self.gain_db {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for GainState {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for GainState {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<GainState, D>
        for &GainState
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<GainState>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<f32, D>(
                self.gain_db.as_ref().map(<f32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<bool, D>(
                self.muted.as_ref().map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<bool, D>(
                self.agc_enabled.as_ref().map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for GainState {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.gain_db.get_or_insert_with(|| fidl::new_empty!(f32, D));
                fidl::decode!(f32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <bool as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.muted.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <bool as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.agc_enabled.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl Info {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.signal_processing_topologies {
                return 14;
            }
            if let Some(_) = self.signal_processing_elements {
                return 13;
            }
            if let Some(_) = self.clock_domain {
                return 12;
            }
            if let Some(_) = self.plug_detect_caps {
                return 11;
            }
            if let Some(_) = self.gain_caps {
                return 10;
            }
            if let Some(_) = self.dai_format_sets {
                return 9;
            }
            if let Some(_) = self.ring_buffer_format_sets {
                return 8;
            }
            if let Some(_) = self.is_input {
                return 7;
            }
            if let Some(_) = self.unique_instance_id {
                return 6;
            }
            if let Some(_) = self.product {
                return 5;
            }
            if let Some(_) = self.manufacturer {
                return 4;
            }
            if let Some(_) = self.device_name {
                return 3;
            }
            if let Some(_) = self.device_type {
                return 2;
            }
            if let Some(_) = self.token_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for Info {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Info {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Info, D> for &Info {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Info>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.token_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<DeviceType, D>(
                self.device_type
                    .as_ref()
                    .map(<DeviceType as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<256>, D>(
                self.device_name.as_ref().map(
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<256>, D>(
                self.manufacturer.as_ref().map(
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<256>, D>(
                self.product.as_ref().map(
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 6 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (6 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Array<u8, 16>, D>(
                self.unique_instance_id.as_ref().map(
                    <fidl::encoding::Array<u8, 16> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 7 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (7 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<bool, D>(
                self.is_input.as_ref().map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 8 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (8 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<ElementRingBufferFormatSet, 64>, D>(
            self.ring_buffer_format_sets.as_ref().map(<fidl::encoding::Vector<ElementRingBufferFormatSet, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 9 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (9 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<ElementDaiFormatSet, 64>, D>(
            self.dai_format_sets.as_ref().map(<fidl::encoding::Vector<ElementDaiFormatSet, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 10 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (10 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<GainCapabilities, D>(
                self.gain_caps
                    .as_ref()
                    .map(<GainCapabilities as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 11 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (11 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<PlugDetectCapabilities, D>(
                self.plug_detect_caps
                    .as_ref()
                    .map(<PlugDetectCapabilities as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 12 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (12 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.clock_domain.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 13 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (13 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Element, 64>,
                D,
            >(
                self.signal_processing_elements.as_ref().map(
                    <fidl::encoding::Vector<
                        fidl_fuchsia_hardware_audio_signalprocessing::Element,
                        64,
                    > as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 14 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (14 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Topology, 64>,
                D,
            >(
                self.signal_processing_topologies.as_ref().map(
                    <fidl::encoding::Vector<
                        fidl_fuchsia_hardware_audio_signalprocessing::Topology,
                        64,
                    > as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Info {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.token_id.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <DeviceType as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.device_type.get_or_insert_with(|| fidl::new_empty!(DeviceType, D));
                fidl::decode!(DeviceType, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<256> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .device_name
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<256>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<256>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<256> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .manufacturer
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<256>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<256>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<256> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .product
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<256>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<256>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 6 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::Array<u8, 16> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .unique_instance_id
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Array<u8, 16>, D));
                fidl::decode!(fidl::encoding::Array<u8, 16>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 7 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <bool as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.is_input.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 8 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<ElementRingBufferFormatSet, 64> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.ring_buffer_format_sets.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<ElementRingBufferFormatSet, 64>, D),
                );
                fidl::decode!(fidl::encoding::Vector<ElementRingBufferFormatSet, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 9 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<ElementDaiFormatSet, 64> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.dai_format_sets.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<ElementDaiFormatSet, 64>, D),
                );
                fidl::decode!(fidl::encoding::Vector<ElementDaiFormatSet, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 10 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <GainCapabilities as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.gain_caps.get_or_insert_with(|| fidl::new_empty!(GainCapabilities, D));
                fidl::decode!(GainCapabilities, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 11 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <PlugDetectCapabilities as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .plug_detect_caps
                    .get_or_insert_with(|| fidl::new_empty!(PlugDetectCapabilities, D));
                fidl::decode!(
                    PlugDetectCapabilities,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 12 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.clock_domain.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 13 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<
                    fidl_fuchsia_hardware_audio_signalprocessing::Element,
                    64,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.signal_processing_elements.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Element, 64>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Element, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 14 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<
                    fidl_fuchsia_hardware_audio_signalprocessing::Topology,
                    64,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.signal_processing_topologies.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Topology, 64>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_hardware_audio_signalprocessing::Topology, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ObserverGetReferenceClockResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.reference_clock {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ObserverGetReferenceClockResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ObserverGetReferenceClockResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ObserverGetReferenceClockResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ObserverGetReferenceClockResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ObserverGetReferenceClockResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::HandleType<
                    fidl::Clock,
                    { fidl::ObjectType::CLOCK.into_raw() },
                    2147483648,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.reference_clock.as_mut().map(
                    <fidl::encoding::HandleType<
                        fidl::Clock,
                        { fidl::ObjectType::CLOCK.into_raw() },
                        2147483648,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ObserverGetReferenceClockResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::HandleType<
                    fidl::Clock,
                    { fidl::ObjectType::CLOCK.into_raw() },
                    2147483648,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.reference_clock.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::HandleType<fidl::Clock, { fidl::ObjectType::CLOCK.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect));
                fidl::decode!(fidl::encoding::HandleType<fidl::Clock, { fidl::ObjectType::CLOCK.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ObserverWatchGainStateResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.state {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ObserverWatchGainStateResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ObserverWatchGainStateResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ObserverWatchGainStateResponse, D>
        for &ObserverWatchGainStateResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ObserverWatchGainStateResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<GainState, D>(
                self.state.as_ref().map(<GainState as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ObserverWatchGainStateResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <GainState as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.state.get_or_insert_with(|| fidl::new_empty!(GainState, D));
                fidl::decode!(GainState, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ObserverWatchPlugStateResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.plug_time {
                return 2;
            }
            if let Some(_) = self.state {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ObserverWatchPlugStateResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ObserverWatchPlugStateResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ObserverWatchPlugStateResponse, D>
        for &ObserverWatchPlugStateResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ObserverWatchPlugStateResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<PlugState, D>(
                self.state.as_ref().map(<PlugState as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.plug_time.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ObserverWatchPlugStateResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <PlugState as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.state.get_or_insert_with(|| fidl::new_empty!(PlugState, D));
                fidl::decode!(PlugState, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.plug_time.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl PcmFormatSet {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.frame_rates {
                return 3;
            }
            if let Some(_) = self.sample_types {
                return 2;
            }
            if let Some(_) = self.channel_sets {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for PcmFormatSet {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for PcmFormatSet {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<PcmFormatSet, D>
        for &PcmFormatSet
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<PcmFormatSet>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<ChannelSet, 64>, D>(
            self.channel_sets.as_ref().map(<fidl::encoding::Vector<ChannelSet, 64> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<fidl_fuchsia_audio::SampleType, 32>, D>(
            self.sample_types.as_ref().map(<fidl::encoding::Vector<fidl_fuchsia_audio::SampleType, 32> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<u32, 64>, D>(
                self.frame_rates.as_ref().map(
                    <fidl::encoding::Vector<u32, 64> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for PcmFormatSet {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<ChannelSet, 64> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.channel_sets.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<ChannelSet, 64>, D),
                );
                fidl::decode!(fidl::encoding::Vector<ChannelSet, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<fidl_fuchsia_audio::SampleType, 32> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.sample_types.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_audio::SampleType, 32>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_audio::SampleType, 32>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::Vector<u32, 64> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .frame_rates
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<u32, 64>, D));
                fidl::decode!(fidl::encoding::Vector<u32, 64>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ProviderAddDeviceRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.driver_client {
                return 3;
            }
            if let Some(_) = self.device_type {
                return 2;
            }
            if let Some(_) = self.device_name {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ProviderAddDeviceRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ProviderAddDeviceRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ProviderAddDeviceRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ProviderAddDeviceRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderAddDeviceRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::BoundedString<256>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.device_name.as_ref().map(
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                DeviceType,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.device_type
                    .as_ref()
                    .map(<DeviceType as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                DriverClient,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.driver_client
                    .as_mut()
                    .map(<DriverClient as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ProviderAddDeviceRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<256> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.device_name.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::BoundedString<256>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::BoundedString<256>,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <DeviceType as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.device_type.get_or_insert_with(|| {
                    fidl::new_empty!(DeviceType, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    DeviceType,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <DriverClient as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.driver_client.get_or_insert_with(|| {
                    fidl::new_empty!(DriverClient, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    DriverClient,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl ProviderAddDeviceResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ProviderAddDeviceResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ProviderAddDeviceResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ProviderAddDeviceResponse, D> for &ProviderAddDeviceResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderAddDeviceResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for ProviderAddDeviceResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RegistryCreateObserverRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.observer_server {
                return 2;
            }
            if let Some(_) = self.token_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for RegistryCreateObserverRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RegistryCreateObserverRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            RegistryCreateObserverRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut RegistryCreateObserverRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RegistryCreateObserverRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.token_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ObserverMarker>>, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.observer_server.as_mut().map(<fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ObserverMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for RegistryCreateObserverRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.token_id.get_or_insert_with(|| {
                    fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Endpoint<
                    fidl::endpoints::ServerEnd<ObserverMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.observer_server.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ObserverMarker>>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<ObserverMarker>>,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RegistryCreateObserverResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryCreateObserverResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RegistryCreateObserverResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RegistryCreateObserverResponse, D>
        for &RegistryCreateObserverResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RegistryCreateObserverResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryCreateObserverResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RegistryWatchDeviceRemovedResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.token_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryWatchDeviceRemovedResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RegistryWatchDeviceRemovedResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RegistryWatchDeviceRemovedResponse, D>
        for &RegistryWatchDeviceRemovedResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RegistryWatchDeviceRemovedResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.token_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryWatchDeviceRemovedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.token_id.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RegistryWatchDevicesAddedResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.devices {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RegistryWatchDevicesAddedResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RegistryWatchDevicesAddedResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RegistryWatchDevicesAddedResponse, D>
        for &RegistryWatchDevicesAddedResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RegistryWatchDevicesAddedResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<Info, 256>, D>(
                self.devices.as_ref().map(
                    <fidl::encoding::Vector<Info, 256> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RegistryWatchDevicesAddedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::Vector<Info, 256> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .devices
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<Info, 256>, D));
                fidl::decode!(fidl::encoding::Vector<Info, 256>, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferOptions {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.ring_buffer_min_bytes {
                return 2;
            }
            if let Some(_) = self.format {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferOptions {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferOptions {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<RingBufferOptions, D>
        for &RingBufferOptions
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferOptions>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl_fuchsia_audio::Format, D>(
                self.format
                    .as_ref()
                    .map(<fidl_fuchsia_audio::Format as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.ring_buffer_min_bytes
                    .as_ref()
                    .map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for RingBufferOptions {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl_fuchsia_audio::Format as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .format
                    .get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_audio::Format, D));
                fidl::decode!(
                    fidl_fuchsia_audio::Format,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.ring_buffer_min_bytes.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferProperties {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.turn_on_delay {
                return 2;
            }
            if let Some(_) = self.valid_bits_per_sample {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferProperties {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferProperties {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<RingBufferProperties, D>
        for &RingBufferProperties
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferProperties>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u8, D>(
                self.valid_bits_per_sample
                    .as_ref()
                    .map(<u8 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.turn_on_delay.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for RingBufferProperties {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u8 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.valid_bits_per_sample.get_or_insert_with(|| fidl::new_empty!(u8, D));
                fidl::decode!(u8, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.turn_on_delay.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferSetActiveChannelsRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.channel_bitmask {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferSetActiveChannelsRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferSetActiveChannelsRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferSetActiveChannelsRequest, D>
        for &RingBufferSetActiveChannelsRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferSetActiveChannelsRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.channel_bitmask.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferSetActiveChannelsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.channel_bitmask.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferStartRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStartRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferStartRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferStartRequest, D> for &RingBufferStartRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferStartRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferStartRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferStopRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStopRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferStopRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<RingBufferStopRequest, D>
        for &RingBufferStopRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferStopRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for RingBufferStopRequest {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferSetActiveChannelsResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.set_time {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferSetActiveChannelsResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferSetActiveChannelsResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferSetActiveChannelsResponse, D>
        for &RingBufferSetActiveChannelsResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferSetActiveChannelsResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.set_time.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferSetActiveChannelsResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.set_time.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferStartResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.start_time {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStartResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferStartResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferStartResponse, D> for &RingBufferStartResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferStartResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<i64, D>(
                self.start_time.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferStartResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.start_time.get_or_insert_with(|| fidl::new_empty!(i64, D));
                fidl::decode!(i64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferStopResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferStopResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferStopResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferStopResponse, D> for &RingBufferStopResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferStopResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferStopResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl RingBufferWatchDelayInfoResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.delay_info {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for RingBufferWatchDelayInfoResponse {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for RingBufferWatchDelayInfoResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<RingBufferWatchDelayInfoResponse, D>
        for &RingBufferWatchDelayInfoResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<RingBufferWatchDelayInfoResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<DelayInfo, D>(
                self.delay_info
                    .as_ref()
                    .map(<DelayInfo as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for RingBufferWatchDelayInfoResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <DelayInfo as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.delay_info.get_or_insert_with(|| fidl::new_empty!(DelayInfo, D));
                fidl::decode!(DelayInfo, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for DriverClient {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for DriverClient {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl fidl::encoding::Encode<DriverClient, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut DriverClient
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DriverClient>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                DriverClient::Codec(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CodecMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CodecMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                DriverClient::Composite(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CompositeMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CompositeMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                DriverClient::Dai(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                DriverClient::StreamConfig(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::StreamConfigMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::StreamConfigMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                DriverClient::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for DriverClient {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CodecMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::CompositeMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                4 => <fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::StreamConfigMarker>,
                > as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Codec(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = DriverClient::Codec(fidl::new_empty!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::CodecMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Codec(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::CodecMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Composite(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = DriverClient::Composite(fidl::new_empty!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::CompositeMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Composite(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::CompositeMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Dai(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = DriverClient::Dai(fidl::new_empty!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::Dai(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<fidl_fuchsia_hardware_audio::DaiMarker>,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::StreamConfig(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = DriverClient::StreamConfig(fidl::new_empty!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::StreamConfigMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let DriverClient::StreamConfig(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::Endpoint<
                                fidl::endpoints::ClientEnd<
                                    fidl_fuchsia_hardware_audio::StreamConfigMarker,
                                >,
                            >,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = DriverClient::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }
}