fidl_fuchsia_memory_attribution/

fidl_fuchsia_memory_attribution.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 _};
pub use fidl_fuchsia_memory_attribution_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct PageRefaultSinkSendPageRefaultCountRequest {
    pub page_refaults_vmo: fidl::Vmo,
}

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

/// Represents a newly added principal.
#[derive(Debug, Default, PartialEq)]
pub struct NewPrincipal {
    /// The identifier of this principal.
    pub identifier: Option<u64>,
    /// Description of the identity of the principal.
    ///
    /// Description holds a human-friendly (or a reference to a human-friendly)
    /// identity descriptor of the principal. This will be used by clients to
    /// identify this principal to users at display time.
    pub description: Option<Description>,
    /// The type of the principal.
    pub principal_type: Option<PrincipalType>,
    /// If this principal provides attribution information, a channel to its
    /// provider.
    pub detailed_attribution: Option<fidl::endpoints::ClientEnd<ProviderMarker>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

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

#[derive(Debug, Default, PartialEq)]
pub struct ProviderGetResponse {
    pub attributions: Option<Vec<AttributionUpdate>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

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

/// The complete set of Resources used by a Principal.
///
/// Upon receiving this message, the previous set of Resources attributed to the identified
/// Principal by this connection should be replaced. If, on another connection, another
/// Provider attributed resources to this principal, these attributions should be kept.
#[derive(Debug, Default, PartialEq)]
pub struct UpdatedPrincipal {
    /// The identifier of this principal.
    pub identifier: Option<u64>,
    /// The resources owned by this principal.
    ///
    /// If the size of the Resource vector is too big to fit in a FIDL message, `buffer` should
    /// contain a serialized vector of Resources.
    pub resources: Option<Resources>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

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

/// Describes a change affecting attribution of resources to a single principal.
#[derive(Debug)]
pub enum AttributionUpdate {
    /// Reports a new principal managed by the reporter.
    ///
    /// Declaring a Principal means that the declarer/reporter is providing the
    /// resources for the Principal to run. Typically, Component Framework
    /// Runners will declare the components they run as Principals.
    Add(NewPrincipal),
    /// Replaces the attribution information for a Principal.
    ///
    /// When this is received, the client is should discard any attribution
    /// information received by this channel for the Principal, and replace it
    /// with this information.
    Update(UpdatedPrincipal),
    /// Removes a Principal.
    ///
    /// Declares that a Principal is no longer active on the system. All
    /// attribution information for this Principal can be removed after this
    /// message. Any remaining resources will still be attributed according to
    /// the default attribution rules.
    Remove(u64),
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

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

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

impl AttributionUpdate {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Add(_) => 1,
            Self::Update(_) => 2,
            Self::Remove(_) => 3,
            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 AttributionUpdate {}

#[derive(Debug)]
pub enum Description {
    /// Token identifying the component instance run by this principal.
    ///
    /// This is the token defined in the component_instance field of
    /// fuchsia.component.runner.ComponentStartInfo.
    Component(fidl::Event),
    /// A subpart of a component, which isn't a fully-blown Component within
    /// Component Framework but still represents a coherent unit of
    /// computation. This can be, for instance, a Linux process under Starnix.
    ///
    /// This name needs to be unique within the component this principal is
    /// part of.
    Part(String),
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

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

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

impl Description {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Component(_) => 1,
            Self::Part(_) => 2,
            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 Description {}

#[derive(Debug)]
pub enum Resources {
    Data(Data),
    /// buffer is read-only.
    Buffer(fidl::Vmo),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

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

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

impl Resources {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Data(_) => 1,
            Self::Buffer(_) => 2,
            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 Resources {}

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

impl fidl::endpoints::ProtocolMarker for PageRefaultSinkMarker {
    type Proxy = PageRefaultSinkProxy;
    type RequestStream = PageRefaultSinkRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = PageRefaultSinkSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.memory.attribution.PageRefaultSink";
}
impl fidl::endpoints::DiscoverableProtocolMarker for PageRefaultSinkMarker {}

pub trait PageRefaultSinkProxyInterface: Send + Sync {
    fn r#send_page_refault_count(&self, page_refaults_vmo: fidl::Vmo) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct PageRefaultSinkSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for PageRefaultSinkSynchronousProxy {
    type Proxy = PageRefaultSinkProxy;
    type Protocol = PageRefaultSinkMarker;

    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 PageRefaultSinkSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    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<PageRefaultSinkEvent, fidl::Error> {
        PageRefaultSinkEvent::decode(self.client.wait_for_event::<PageRefaultSinkMarker>(deadline)?)
    }

    /// Sends a VMO containing a shared count of the number of page refaults of a pager. The shared
    /// count is a single atomic 64-bit unsigned integer.
    pub fn r#send_page_refault_count(
        &self,
        mut page_refaults_vmo: fidl::Vmo,
    ) -> Result<(), fidl::Error> {
        self.client.send::<PageRefaultSinkSendPageRefaultCountRequest>(
            (page_refaults_vmo,),
            0x1d4f9f7efbb957e3,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

#[cfg(target_os = "fuchsia")]
impl From<PageRefaultSinkSynchronousProxy> for zx::NullableHandle {
    fn from(value: PageRefaultSinkSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for PageRefaultSinkSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for PageRefaultSinkSynchronousProxy {
    type Protocol = PageRefaultSinkMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<PageRefaultSinkMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

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

impl fidl::endpoints::Proxy for PageRefaultSinkProxy {
    type Protocol = PageRefaultSinkMarker;

    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 PageRefaultSinkProxy {
    /// Create a new Proxy for fuchsia.memory.attribution/PageRefaultSink.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <PageRefaultSinkMarker 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) -> PageRefaultSinkEventStream {
        PageRefaultSinkEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Sends a VMO containing a shared count of the number of page refaults of a pager. The shared
    /// count is a single atomic 64-bit unsigned integer.
    pub fn r#send_page_refault_count(
        &self,
        mut page_refaults_vmo: fidl::Vmo,
    ) -> Result<(), fidl::Error> {
        PageRefaultSinkProxyInterface::r#send_page_refault_count(self, page_refaults_vmo)
    }
}

impl PageRefaultSinkProxyInterface for PageRefaultSinkProxy {
    fn r#send_page_refault_count(
        &self,
        mut page_refaults_vmo: fidl::Vmo,
    ) -> Result<(), fidl::Error> {
        self.client.send::<PageRefaultSinkSendPageRefaultCountRequest>(
            (page_refaults_vmo,),
            0x1d4f9f7efbb957e3,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

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

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

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

impl futures::Stream for PageRefaultSinkEventStream {
    type Item = Result<PageRefaultSinkEvent, 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(PageRefaultSinkEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

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

impl PageRefaultSinkEvent {
    /// Decodes a message buffer as a [`PageRefaultSinkEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<PageRefaultSinkEvent, 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(PageRefaultSinkEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name:
                    <PageRefaultSinkMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.memory.attribution/PageRefaultSink.
pub struct PageRefaultSinkRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for PageRefaultSinkRequestStream {
    type Protocol = PageRefaultSinkMarker;
    type ControlHandle = PageRefaultSinkControlHandle;

    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 {
        PageRefaultSinkControlHandle { 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 PageRefaultSinkRequestStream {
    type Item = Result<PageRefaultSinkRequest, 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 PageRefaultSinkRequestStream 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 {
                    0x1d4f9f7efbb957e3 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            PageRefaultSinkSendPageRefaultCountRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<PageRefaultSinkSendPageRefaultCountRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            PageRefaultSinkControlHandle { inner: this.inner.clone() };
                        Ok(PageRefaultSinkRequest::SendPageRefaultCount {
                            page_refaults_vmo: req.page_refaults_vmo,

                            control_handle,
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(PageRefaultSinkRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: PageRefaultSinkControlHandle {
                                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(PageRefaultSinkRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: PageRefaultSinkControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <PageRefaultSinkMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// Protocol used by user pagers to publish memory attribution statistics.
#[derive(Debug)]
pub enum PageRefaultSinkRequest {
    /// Sends a VMO containing a shared count of the number of page refaults of a pager. The shared
    /// count is a single atomic 64-bit unsigned integer.
    SendPageRefaultCount {
        page_refaults_vmo: fidl::Vmo,
        control_handle: PageRefaultSinkControlHandle,
    },
    /// 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: PageRefaultSinkControlHandle,
        method_type: fidl::MethodType,
    },
}

impl PageRefaultSinkRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_send_page_refault_count(self) -> Option<(fidl::Vmo, PageRefaultSinkControlHandle)> {
        if let PageRefaultSinkRequest::SendPageRefaultCount { page_refaults_vmo, control_handle } =
            self
        {
            Some((page_refaults_vmo, control_handle))
        } else {
            None
        }
    }

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

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

impl PageRefaultSinkControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for PageRefaultSinkControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        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 PageRefaultSinkControlHandle {}

#[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.memory.attribution.Provider";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ProviderMarker {}
pub type ProviderGetResult = Result<ProviderGetResponse, Error>;

pub trait ProviderProxyInterface: Send + Sync {
    type GetResponseFut: std::future::Future<Output = Result<ProviderGetResult, fidl::Error>> + Send;
    fn r#get(&self) -> Self::GetResponseFut;
}
#[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 {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    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::<ProviderMarker>(deadline)?)
    }

    /// Returns the attribution information known to the provider.
    ///
    /// The first call returns immediately with the current information.
    /// Subsequent calls will be held if no additional information is
    /// available, and return only when there are changes to the attribution
    /// information to be reported.
    ///
    /// Runners will typically report the kernel resources (e.g. job, process,
    /// etc) associated with each component that they are responsible for
    /// running.
    ///
    /// Components may optionally report resource usage by different categories
    /// within their implementation.
    pub fn r#get(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ProviderGetResult, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            fidl::encoding::FlexibleResultType<ProviderGetResponse, Error>,
            ProviderMarker,
        >(
            (),
            0x7a2f2d2cdcfcc945,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            ___deadline,
        )?
        .into_result::<ProviderMarker>("get")?;
        Ok(_response.map(|x| x))
    }
}

#[cfg(target_os = "fuchsia")]
impl From<ProviderSynchronousProxy> for zx::NullableHandle {
    fn from(value: ProviderSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for ProviderSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

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

    fn from_client(value: fidl::endpoints::ClientEnd<ProviderMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[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.memory.attribution/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() }
    }

    /// Returns the attribution information known to the provider.
    ///
    /// The first call returns immediately with the current information.
    /// Subsequent calls will be held if no additional information is
    /// available, and return only when there are changes to the attribution
    /// information to be reported.
    ///
    /// Runners will typically report the kernel resources (e.g. job, process,
    /// etc) associated with each component that they are responsible for
    /// running.
    ///
    /// Components may optionally report resource usage by different categories
    /// within their implementation.
    pub fn r#get(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ProviderGetResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ProviderProxyInterface::r#get(self)
    }
}

impl ProviderProxyInterface for ProviderProxy {
    type GetResponseFut = fidl::client::QueryResponseFut<
        ProviderGetResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get(&self) -> Self::GetResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ProviderGetResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<ProviderGetResponse, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x7a2f2d2cdcfcc945,
            >(_buf?)?
            .into_result::<ProviderMarker>("get")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, ProviderGetResult>(
            (),
            0x7a2f2d2cdcfcc945,
            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.memory.attribution/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 {
                    0x7a2f2d2cdcfcc945 => {
                        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 = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::Get {
                            responder: ProviderGetResponder {
                                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,
                    }),
                }))
            },
        )
    }
}

/// Provides memory attribution information under this principal.
///
/// The typical expected usage of this protocol is:
///  - Component Runners implement this protocol and declare it in their
///    manifest.
///  - A Component that wants to provide extra internal information may also
///    declare and implement this protocol;
///  - Clients connect to a `Provider`, and use the `Get` methods to
///    recursively explore the Principal hierarchy.
///
/// Clients will typically maintain the connection and start a hanging get to
/// retrieve attribution information. Runners need to inspect the manifest of
/// their runnees to determine if they serve this protocol, and proactively
/// create the connection. They can also proxy this protocol in case their
/// runnee provides attribution information in an unsuitable format.
#[derive(Debug)]
pub enum ProviderRequest {
    /// Returns the attribution information known to the provider.
    ///
    /// The first call returns immediately with the current information.
    /// Subsequent calls will be held if no additional information is
    /// available, and return only when there are changes to the attribution
    /// information to be reported.
    ///
    /// Runners will typically report the kernel resources (e.g. job, process,
    /// etc) associated with each component that they are responsible for
    /// running.
    ///
    /// Components may optionally report resource usage by different categories
    /// within their implementation.
    Get { responder: ProviderGetResponder },
    /// 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_get(self) -> Option<(ProviderGetResponder)> {
        if let ProviderRequest::Get { responder } = self { Some((responder)) } else { None }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ProviderRequest::Get { .. } => "get",
            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 ProviderControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for ProviderControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        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 ProviderGetResponder {
    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 ProviderGetResponder {
    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 ProviderGetResponder {
    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 ProviderGetResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<ProviderGetResponse, Error>) -> 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<ProviderGetResponse, Error>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<ProviderGetResponse, Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::FlexibleResultType<ProviderGetResponse, Error>>(
                fidl::encoding::FlexibleResult::new(result.as_mut().map_err(|e| *e)),
                self.tx_id,
                0x7a2f2d2cdcfcc945,
                fidl::encoding::DynamicFlags::FLEXIBLE,
            )
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for PageRefaultSinkSendPageRefaultCountRequest {
        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 PageRefaultSinkSendPageRefaultCountRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            4
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            PageRefaultSinkSendPageRefaultCountRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut PageRefaultSinkSendPageRefaultCountRequest
    {
        #[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::<PageRefaultSinkSendPageRefaultCountRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                PageRefaultSinkSendPageRefaultCountRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (<fidl::encoding::HandleType<
                    fidl::Vmo,
                    { fidl::ObjectType::VMO.into_raw() },
                    49255,
                > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                    &mut self.page_refaults_vmo,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49255>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            PageRefaultSinkSendPageRefaultCountRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[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::<PageRefaultSinkSendPageRefaultCountRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for PageRefaultSinkSendPageRefaultCountRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                page_refaults_vmo: fidl::new_empty!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49255>, fidl::encoding::DefaultFuchsiaResourceDialect),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49255>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.page_refaults_vmo, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl NewPrincipal {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.detailed_attribution {
                return 4;
            }
            if let Some(_) = self.principal_type {
                return 3;
            }
            if let Some(_) = self.description {
                return 2;
            }
            if let Some(_) = self.identifier {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for NewPrincipal {
        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 NewPrincipal {
        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<NewPrincipal, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut NewPrincipal
    {
        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::<NewPrincipal>(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.identifier.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::<
                Description,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.description
                    .as_mut()
                    .map(<Description as fidl::encoding::ResourceTypeMarker>::take_or_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::<
                PrincipalType,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.principal_type
                    .as_ref()
                    .map(<PrincipalType 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::Endpoint<fidl::endpoints::ClientEnd<ProviderMarker>>, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.detailed_attribution.as_mut().map(<fidl::encoding::Endpoint<fidl::endpoints::ClientEnd<ProviderMarker>> 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 NewPrincipal {
        #[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.identifier.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 =
                    <Description 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.description.get_or_insert_with(|| {
                    fidl::new_empty!(Description, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    Description,
                    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 =
                    <PrincipalType 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.principal_type.get_or_insert_with(|| {
                    fidl::new_empty!(PrincipalType, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    PrincipalType,
                    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 < 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::Endpoint<
                    fidl::endpoints::ClientEnd<ProviderMarker>,
                > 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.detailed_attribution.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::Endpoint<fidl::endpoints::ClientEnd<ProviderMarker>>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::Endpoint<fidl::endpoints::ClientEnd<ProviderMarker>>,
                    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 ProviderGetResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.attributions {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ProviderGetResponse {
        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 ProviderGetResponse {
        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<ProviderGetResponse, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut ProviderGetResponse
    {
        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::<ProviderGetResponse>(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::UnboundedVector<AttributionUpdate>, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.attributions.as_mut().map(<fidl::encoding::UnboundedVector<AttributionUpdate> 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 ProviderGetResponse
    {
        #[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::UnboundedVector<AttributionUpdate> 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.attributions.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl::encoding::UnboundedVector<AttributionUpdate>,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl::encoding::UnboundedVector<AttributionUpdate>,
                    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 UpdatedPrincipal {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.resources {
                return 2;
            }
            if let Some(_) = self.identifier {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for UpdatedPrincipal {
        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 UpdatedPrincipal {
        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<UpdatedPrincipal, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut UpdatedPrincipal
    {
        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::<UpdatedPrincipal>(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.identifier.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::<
                Resources,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.resources
                    .as_mut()
                    .map(<Resources 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 UpdatedPrincipal
    {
        #[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.identifier.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 =
                    <Resources 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.resources.get_or_insert_with(|| {
                    fidl::new_empty!(Resources, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    Resources,
                    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 fidl::encoding::ResourceTypeMarker for AttributionUpdate {
        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 AttributionUpdate {
        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<AttributionUpdate, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut AttributionUpdate
    {
        #[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::<AttributionUpdate>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                AttributionUpdate::Add(ref mut val) => fidl::encoding::encode_in_envelope::<
                    NewPrincipal,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <NewPrincipal as fidl::encoding::ResourceTypeMarker>::take_or_borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                AttributionUpdate::Update(ref mut val) => fidl::encoding::encode_in_envelope::<
                    UpdatedPrincipal,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <UpdatedPrincipal as fidl::encoding::ResourceTypeMarker>::take_or_borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                AttributionUpdate::Remove(ref val) => fidl::encoding::encode_in_envelope::<
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                AttributionUpdate::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for AttributionUpdate
    {
        #[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 => <NewPrincipal as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <UpdatedPrincipal as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <u64 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 AttributionUpdate::Add(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = AttributionUpdate::Add(fidl::new_empty!(
                            NewPrincipal,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let AttributionUpdate::Add(ref mut val) = self {
                        fidl::decode!(
                            NewPrincipal,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let AttributionUpdate::Update(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = AttributionUpdate::Update(fidl::new_empty!(
                            UpdatedPrincipal,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let AttributionUpdate::Update(ref mut val) = self {
                        fidl::decode!(
                            UpdatedPrincipal,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let AttributionUpdate::Remove(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = AttributionUpdate::Remove(fidl::new_empty!(
                            u64,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let AttributionUpdate::Remove(ref mut val) = self {
                        fidl::decode!(
                            u64,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = AttributionUpdate::__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(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for Description {
        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 Description {
        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<Description, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut Description
    {
        #[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::<Description>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                Description::Component(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                Description::Part(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                Description::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for Description {
        #[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::HandleType<
                    fidl::Event,
                    { fidl::ObjectType::EVENT.into_raw() },
                    2147483648,
                > as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <fidl::encoding::UnboundedString 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 Description::Component(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Description::Component(
                            fidl::new_empty!(fidl::encoding::HandleType<fidl::Event, { fidl::ObjectType::EVENT.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect),
                        );
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Description::Component(ref mut val) = self {
                        fidl::decode!(fidl::encoding::HandleType<fidl::Event, { fidl::ObjectType::EVENT.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Description::Part(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Description::Part(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Description::Part(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = Description::__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(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for Resources {
        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 Resources {
        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<Resources, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut Resources
    {
        #[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::<Resources>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                Resources::Data(ref val) => fidl::encoding::encode_in_envelope::<
                    Data,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <Data as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                Resources::Buffer(ref mut val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::HandleType<
                        fidl::Vmo,
                        { fidl::ObjectType::VMO.into_raw() },
                        2147483648,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                >(
                    <fidl::encoding::HandleType<
                        fidl::Vmo,
                        { fidl::ObjectType::VMO.into_raw() },
                        2147483648,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        val
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                Resources::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for Resources {
        #[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 => <Data as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <fidl::encoding::HandleType<
                    fidl::Vmo,
                    { fidl::ObjectType::VMO.into_raw() },
                    2147483648,
                > 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 Resources::Data(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Resources::Data(fidl::new_empty!(
                            Data,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Resources::Data(ref mut val) = self {
                        fidl::decode!(
                            Data,
                            fidl::encoding::DefaultFuchsiaResourceDialect,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Resources::Buffer(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Resources::Buffer(
                            fidl::new_empty!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect),
                        );
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Resources::Buffer(ref mut val) = self {
                        fidl::decode!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = Resources::__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(())
        }
    }
}