fidl_fuchsia_metrics/

fidl_fuchsia_metrics.rs

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

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

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

/// A vector of event codes. When used in one of the Log*() calls below,
/// there must be one event code for each dimension of the metric whose
/// metric_id is supplied, or else the call will return INVALID_ARGUMENTS.
pub type EventVector = Vec<u32>;

/// A histogram that assigns a count to each of several integer ranges.
/// To save space/memory/bandwidth, each bucket index should only be included
/// once, and empty buckets should not be included. The order of the vector
/// is immaterial.
pub type IntegerHistogram = Vec<HistogramBucket>;

/// Maximum number of events that may be logged in a single FIDL call.
pub const MAX_BATCHED_EVENTS: u32 = 500;

/// The maximum size of a single Event is 100 KB.
pub const MAX_BYTES_PER_EVENT: i64 = 102400;

/// Maximum number of experiment ids that can be provided to a single logger.
pub const MAX_EXPERIMENT_IDS: u32 = 100;

/// This is intended as a reasonable maximum number of histogram buckets per
/// event.
pub const MAX_HISTOGRAM_BUCKETS: u32 = 500;

/// Maximum number of event codes that can be associated with a single event.
pub const MAX_METRIC_DIMENSIONS: u32 = 10;

/// String events should not be longer than this.
pub const MAX_STRING_EVENT_SIZE: u32 = 256;

/// Error codes for MetricEventLogger operations.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(i32)]
pub enum Error {
    /// For example, the supplied metric id is invalid.
    InvalidArguments = 1,
    /// An attempt was made to log an Event whose serialized size exceeds
    /// MAX_BYTES_PER_EVENT.
    EventTooBig = 2,
    /// The logger's local buffer is temporarily full and cannot handle any more
    /// Events at this time. Try again later. This condition should be rare.
    BufferFull = 3,
    ShutDown = 4,
    /// Catch-all for unexpected errors.
    InternalError = -1,
}

impl Error {
    #[inline]
    pub fn from_primitive(prim: i32) -> Option<Self> {
        match prim {
            1 => Some(Self::InvalidArguments),
            2 => Some(Self::EventTooBig),
            3 => Some(Self::BufferFull),
            4 => Some(Self::ShutDown),
            -1 => Some(Self::InternalError),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> i32 {
        self as i32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// One bucket of a histogram, used by the method LogIntegerHistogram.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct HistogramBucket {
    /// The index of the bucket. The metric includes a specification
    /// of a sequence of N+1 integer-range buckets that are indexed from
    /// 0, the underflow bucket, to N, the overflow bucket.
    pub index: u32,
    /// The number of values in that bucket.
    /// To save space/memory/bandwidth, empty buckets should not be included.
    pub count: u64,
}

impl fidl::Persistable for HistogramBucket {}

/// A specification of an event that occurred to be passed to LogMetricEvents().
#[derive(Clone, Debug, PartialEq)]
pub struct MetricEvent {
    /// ID of the metric being logged.
    pub metric_id: u32,
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions.
    pub event_codes: Vec<u32>,
    /// The metric-type-specific data for the event being logged.
    pub payload: MetricEventPayload,
}

impl fidl::Persistable for MetricEvent {}

#[derive(Debug, PartialEq)]
pub struct MetricEventLoggerFactoryCreateMetricEventLoggerRequest {
    pub project_spec: ProjectSpec,
    pub logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
}

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

#[derive(Debug, PartialEq)]
pub struct MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest {
    pub project_spec: ProjectSpec,
    pub experiment_ids: Vec<u32>,
    pub logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
}

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

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct MetricEventLoggerLogIntegerHistogramRequest {
    pub metric_id: u32,
    pub histogram: Vec<HistogramBucket>,
    pub event_codes: Vec<u32>,
}

impl fidl::Persistable for MetricEventLoggerLogIntegerHistogramRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct MetricEventLoggerLogIntegerRequest {
    pub metric_id: u32,
    pub value: i64,
    pub event_codes: Vec<u32>,
}

impl fidl::Persistable for MetricEventLoggerLogIntegerRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct MetricEventLoggerLogMetricEventsRequest {
    pub events: Vec<MetricEvent>,
}

impl fidl::Persistable for MetricEventLoggerLogMetricEventsRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct MetricEventLoggerLogOccurrenceRequest {
    pub metric_id: u32,
    pub count: u64,
    pub event_codes: Vec<u32>,
}

impl fidl::Persistable for MetricEventLoggerLogOccurrenceRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct MetricEventLoggerLogStringRequest {
    pub metric_id: u32,
    pub string_value: String,
    pub event_codes: Vec<u32>,
}

impl fidl::Persistable for MetricEventLoggerLogStringRequest {}

/// A specification identifying a project to log events for.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ProjectSpec {
    /// The customer ID. If omitted (i.e. set to 0) then it defaults to the
    /// customer ID for the default "fuchsia" customer.
    pub customer_id: Option<u32>,
    /// The ID of the project.
    pub project_id: Option<u32>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ProjectSpec {}

/// The variadic part of a MetricEvent.
#[derive(Clone, Debug)]
pub enum MetricEventPayload {
    /// The number of times the event has occurred, see LogOccurrence().
    Count(u64),
    /// The integer measured, see LogInteger().
    IntegerValue(i64),
    /// The collection of approximate integer measurements, see
    /// LogIntegerHistogram().
    Histogram(Vec<HistogramBucket>),
    /// The string to log, see LogString().
    StringValue(String),
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

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

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

impl MetricEventPayload {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Count(_) => 1,
            Self::IntegerValue(_) => 2,
            Self::Histogram(_) => 3,
            Self::StringValue(_) => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

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

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

impl fidl::Persistable for MetricEventPayload {}

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

impl fidl::endpoints::ProtocolMarker for MetricEventLoggerMarker {
    type Proxy = MetricEventLoggerProxy;
    type RequestStream = MetricEventLoggerRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = MetricEventLoggerSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) MetricEventLogger";
}
pub type MetricEventLoggerLogOccurrenceResult = Result<(), Error>;
pub type MetricEventLoggerLogIntegerResult = Result<(), Error>;
pub type MetricEventLoggerLogIntegerHistogramResult = Result<(), Error>;
pub type MetricEventLoggerLogStringResult = Result<(), Error>;
pub type MetricEventLoggerLogMetricEventsResult = Result<(), Error>;

pub trait MetricEventLoggerProxyInterface: Send + Sync {
    type LogOccurrenceResponseFut: std::future::Future<Output = Result<MetricEventLoggerLogOccurrenceResult, fidl::Error>>
        + Send;
    fn r#log_occurrence(
        &self,
        metric_id: u32,
        count: u64,
        event_codes: &[u32],
    ) -> Self::LogOccurrenceResponseFut;
    type LogIntegerResponseFut: std::future::Future<Output = Result<MetricEventLoggerLogIntegerResult, fidl::Error>>
        + Send;
    fn r#log_integer(
        &self,
        metric_id: u32,
        value: i64,
        event_codes: &[u32],
    ) -> Self::LogIntegerResponseFut;
    type LogIntegerHistogramResponseFut: std::future::Future<
            Output = Result<MetricEventLoggerLogIntegerHistogramResult, fidl::Error>,
        > + Send;
    fn r#log_integer_histogram(
        &self,
        metric_id: u32,
        histogram: &[HistogramBucket],
        event_codes: &[u32],
    ) -> Self::LogIntegerHistogramResponseFut;
    type LogStringResponseFut: std::future::Future<Output = Result<MetricEventLoggerLogStringResult, fidl::Error>>
        + Send;
    fn r#log_string(
        &self,
        metric_id: u32,
        string_value: &str,
        event_codes: &[u32],
    ) -> Self::LogStringResponseFut;
    type LogMetricEventsResponseFut: std::future::Future<Output = Result<MetricEventLoggerLogMetricEventsResult, fidl::Error>>
        + Send;
    fn r#log_metric_events(&self, events: &[MetricEvent]) -> Self::LogMetricEventsResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct MetricEventLoggerSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for MetricEventLoggerSynchronousProxy {
    type Proxy = MetricEventLoggerProxy;
    type Protocol = MetricEventLoggerMarker;

    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 MetricEventLoggerSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name =
            <MetricEventLoggerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

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

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

    /// Logs the fact that an event has occurred a number of times.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `count` The number of times the event has occurred. The value should
    /// be positive as a value of 0 is ignored.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Occurrence counts with the same event codes are aggregated
    /// based on these parameters.
    pub fn r#log_occurrence(
        &self,
        mut metric_id: u32,
        mut count: u64,
        mut event_codes: &[u32],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerLogOccurrenceResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerLogOccurrenceRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (metric_id, count, event_codes,),
            0x26308985ae2bb3ac,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Logs an integer measurement.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `value` The integer measurement.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Integer values with the same event codes are aggregated
    /// based on these parameters.
    pub fn r#log_integer(
        &self,
        mut metric_id: u32,
        mut value: i64,
        mut event_codes: &[u32],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerLogIntegerResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerLogIntegerRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (metric_id, value, event_codes,),
            0x5d453303a88bd552,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Logs a histogram giving many approximate integer measurements.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `histogram` The collection of approximate integer measurements. Buckets
    /// that have no measurement (empty buckets) should not be sent.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Histograms with the same event codes are aggregated together
    /// based on these parameters.
    pub fn r#log_integer_histogram(
        &self,
        mut metric_id: u32,
        mut histogram: &[HistogramBucket],
        mut event_codes: &[u32],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerLogIntegerHistogramResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerLogIntegerHistogramRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (metric_id, histogram, event_codes,),
            0x79ac8a6bc06a01c0,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Logs a string value that was observed.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `string_value` The string to log.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Counts of logged strings are aggregated separately based on
    /// these parameters.
    pub fn r#log_string(
        &self,
        mut metric_id: u32,
        mut string_value: &str,
        mut event_codes: &[u32],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerLogStringResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerLogStringRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (metric_id, string_value, event_codes,),
            0x1611efbdf6ac8300,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Bulk logging method, equivalent to making many of the above Log*() calls
    /// at once.
    pub fn r#log_metric_events(
        &self,
        mut events: &[MetricEvent],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerLogMetricEventsResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerLogMetricEventsRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (events,),
            0x4d8c26bb74820c6b,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }
}

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

impl fidl::endpoints::Proxy for MetricEventLoggerProxy {
    type Protocol = MetricEventLoggerMarker;

    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 MetricEventLoggerProxy {
    /// Create a new Proxy for fuchsia.metrics/MetricEventLogger.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name =
            <MetricEventLoggerMarker 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) -> MetricEventLoggerEventStream {
        MetricEventLoggerEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Logs the fact that an event has occurred a number of times.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `count` The number of times the event has occurred. The value should
    /// be positive as a value of 0 is ignored.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Occurrence counts with the same event codes are aggregated
    /// based on these parameters.
    pub fn r#log_occurrence(
        &self,
        mut metric_id: u32,
        mut count: u64,
        mut event_codes: &[u32],
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerLogOccurrenceResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerProxyInterface::r#log_occurrence(self, metric_id, count, event_codes)
    }

    /// Logs an integer measurement.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `value` The integer measurement.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Integer values with the same event codes are aggregated
    /// based on these parameters.
    pub fn r#log_integer(
        &self,
        mut metric_id: u32,
        mut value: i64,
        mut event_codes: &[u32],
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerLogIntegerResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerProxyInterface::r#log_integer(self, metric_id, value, event_codes)
    }

    /// Logs a histogram giving many approximate integer measurements.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `histogram` The collection of approximate integer measurements. Buckets
    /// that have no measurement (empty buckets) should not be sent.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Histograms with the same event codes are aggregated together
    /// based on these parameters.
    pub fn r#log_integer_histogram(
        &self,
        mut metric_id: u32,
        mut histogram: &[HistogramBucket],
        mut event_codes: &[u32],
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerLogIntegerHistogramResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerProxyInterface::r#log_integer_histogram(
            self,
            metric_id,
            histogram,
            event_codes,
        )
    }

    /// Logs a string value that was observed.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `string_value` The string to log.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Counts of logged strings are aggregated separately based on
    /// these parameters.
    pub fn r#log_string(
        &self,
        mut metric_id: u32,
        mut string_value: &str,
        mut event_codes: &[u32],
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerLogStringResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerProxyInterface::r#log_string(self, metric_id, string_value, event_codes)
    }

    /// Bulk logging method, equivalent to making many of the above Log*() calls
    /// at once.
    pub fn r#log_metric_events(
        &self,
        mut events: &[MetricEvent],
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerLogMetricEventsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerProxyInterface::r#log_metric_events(self, events)
    }
}

impl MetricEventLoggerProxyInterface for MetricEventLoggerProxy {
    type LogOccurrenceResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerLogOccurrenceResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#log_occurrence(
        &self,
        mut metric_id: u32,
        mut count: u64,
        mut event_codes: &[u32],
    ) -> Self::LogOccurrenceResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerLogOccurrenceResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x26308985ae2bb3ac,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerLogOccurrenceRequest,
            MetricEventLoggerLogOccurrenceResult,
        >(
            (metric_id, count, event_codes,),
            0x26308985ae2bb3ac,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type LogIntegerResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerLogIntegerResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#log_integer(
        &self,
        mut metric_id: u32,
        mut value: i64,
        mut event_codes: &[u32],
    ) -> Self::LogIntegerResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerLogIntegerResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5d453303a88bd552,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerLogIntegerRequest,
            MetricEventLoggerLogIntegerResult,
        >(
            (metric_id, value, event_codes,),
            0x5d453303a88bd552,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type LogIntegerHistogramResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerLogIntegerHistogramResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#log_integer_histogram(
        &self,
        mut metric_id: u32,
        mut histogram: &[HistogramBucket],
        mut event_codes: &[u32],
    ) -> Self::LogIntegerHistogramResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerLogIntegerHistogramResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x79ac8a6bc06a01c0,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerLogIntegerHistogramRequest,
            MetricEventLoggerLogIntegerHistogramResult,
        >(
            (metric_id, histogram, event_codes,),
            0x79ac8a6bc06a01c0,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type LogStringResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerLogStringResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#log_string(
        &self,
        mut metric_id: u32,
        mut string_value: &str,
        mut event_codes: &[u32],
    ) -> Self::LogStringResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerLogStringResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1611efbdf6ac8300,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerLogStringRequest,
            MetricEventLoggerLogStringResult,
        >(
            (metric_id, string_value, event_codes,),
            0x1611efbdf6ac8300,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type LogMetricEventsResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerLogMetricEventsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#log_metric_events(&self, mut events: &[MetricEvent]) -> Self::LogMetricEventsResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerLogMetricEventsResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4d8c26bb74820c6b,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerLogMetricEventsRequest,
            MetricEventLoggerLogMetricEventsResult,
        >(
            (events,),
            0x4d8c26bb74820c6b,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

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

#[derive(Debug)]
pub enum MetricEventLoggerEvent {}

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

/// A Stream of incoming requests for fuchsia.metrics/MetricEventLogger.
pub struct MetricEventLoggerRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for MetricEventLoggerRequestStream {
    type Protocol = MetricEventLoggerMarker;
    type ControlHandle = MetricEventLoggerControlHandle;

    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 {
        MetricEventLoggerControlHandle { 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 MetricEventLoggerRequestStream {
    type Item = Result<MetricEventLoggerRequest, 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 MetricEventLoggerRequestStream 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 {
                    0x26308985ae2bb3ac => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            MetricEventLoggerLogOccurrenceRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerLogOccurrenceRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MetricEventLoggerControlHandle { inner: this.inner.clone() };
                        Ok(MetricEventLoggerRequest::LogOccurrence {
                            metric_id: req.metric_id,
                            count: req.count,
                            event_codes: req.event_codes,

                            responder: MetricEventLoggerLogOccurrenceResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x5d453303a88bd552 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            MetricEventLoggerLogIntegerRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerLogIntegerRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MetricEventLoggerControlHandle { inner: this.inner.clone() };
                        Ok(MetricEventLoggerRequest::LogInteger {
                            metric_id: req.metric_id,
                            value: req.value,
                            event_codes: req.event_codes,

                            responder: MetricEventLoggerLogIntegerResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x79ac8a6bc06a01c0 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            MetricEventLoggerLogIntegerHistogramRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerLogIntegerHistogramRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MetricEventLoggerControlHandle { inner: this.inner.clone() };
                        Ok(MetricEventLoggerRequest::LogIntegerHistogram {
                            metric_id: req.metric_id,
                            histogram: req.histogram,
                            event_codes: req.event_codes,

                            responder: MetricEventLoggerLogIntegerHistogramResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x1611efbdf6ac8300 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            MetricEventLoggerLogStringRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerLogStringRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MetricEventLoggerControlHandle { inner: this.inner.clone() };
                        Ok(MetricEventLoggerRequest::LogString {
                            metric_id: req.metric_id,
                            string_value: req.string_value,
                            event_codes: req.event_codes,

                            responder: MetricEventLoggerLogStringResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x4d8c26bb74820c6b => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            MetricEventLoggerLogMetricEventsRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerLogMetricEventsRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MetricEventLoggerControlHandle { inner: this.inner.clone() };
                        Ok(MetricEventLoggerRequest::LogMetricEvents {
                            events: req.events,

                            responder: MetricEventLoggerLogMetricEventsResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <MetricEventLoggerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A logger for events that are associated with one project's metrics.
#[derive(Debug)]
pub enum MetricEventLoggerRequest {
    /// Logs the fact that an event has occurred a number of times.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `count` The number of times the event has occurred. The value should
    /// be positive as a value of 0 is ignored.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Occurrence counts with the same event codes are aggregated
    /// based on these parameters.
    LogOccurrence {
        metric_id: u32,
        count: u64,
        event_codes: Vec<u32>,
        responder: MetricEventLoggerLogOccurrenceResponder,
    },
    /// Logs an integer measurement.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `value` The integer measurement.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Integer values with the same event codes are aggregated
    /// based on these parameters.
    LogInteger {
        metric_id: u32,
        value: i64,
        event_codes: Vec<u32>,
        responder: MetricEventLoggerLogIntegerResponder,
    },
    /// Logs a histogram giving many approximate integer measurements.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `histogram` The collection of approximate integer measurements. Buckets
    /// that have no measurement (empty buckets) should not be sent.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Histograms with the same event codes are aggregated together
    /// based on these parameters.
    LogIntegerHistogram {
        metric_id: u32,
        histogram: Vec<HistogramBucket>,
        event_codes: Vec<u32>,
        responder: MetricEventLoggerLogIntegerHistogramResponder,
    },
    /// Logs a string value that was observed.
    ///
    /// `metric_id` ID of the metric being logged.
    ///
    /// `string_value` The string to log.
    ///
    /// `event_codes` Ordered list of parameters, one for each of the metric's
    /// dimensions. Counts of logged strings are aggregated separately based on
    /// these parameters.
    LogString {
        metric_id: u32,
        string_value: String,
        event_codes: Vec<u32>,
        responder: MetricEventLoggerLogStringResponder,
    },
    /// Bulk logging method, equivalent to making many of the above Log*() calls
    /// at once.
    LogMetricEvents {
        events: Vec<MetricEvent>,
        responder: MetricEventLoggerLogMetricEventsResponder,
    },
}

impl MetricEventLoggerRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_log_occurrence(
        self,
    ) -> Option<(u32, u64, Vec<u32>, MetricEventLoggerLogOccurrenceResponder)> {
        if let MetricEventLoggerRequest::LogOccurrence {
            metric_id,
            count,
            event_codes,
            responder,
        } = self
        {
            Some((metric_id, count, event_codes, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_log_integer(
        self,
    ) -> Option<(u32, i64, Vec<u32>, MetricEventLoggerLogIntegerResponder)> {
        if let MetricEventLoggerRequest::LogInteger { metric_id, value, event_codes, responder } =
            self
        {
            Some((metric_id, value, event_codes, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_log_integer_histogram(
        self,
    ) -> Option<(u32, Vec<HistogramBucket>, Vec<u32>, MetricEventLoggerLogIntegerHistogramResponder)>
    {
        if let MetricEventLoggerRequest::LogIntegerHistogram {
            metric_id,
            histogram,
            event_codes,
            responder,
        } = self
        {
            Some((metric_id, histogram, event_codes, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_log_string(
        self,
    ) -> Option<(u32, String, Vec<u32>, MetricEventLoggerLogStringResponder)> {
        if let MetricEventLoggerRequest::LogString {
            metric_id,
            string_value,
            event_codes,
            responder,
        } = self
        {
            Some((metric_id, string_value, event_codes, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_log_metric_events(
        self,
    ) -> Option<(Vec<MetricEvent>, MetricEventLoggerLogMetricEventsResponder)> {
        if let MetricEventLoggerRequest::LogMetricEvents { events, responder } = self {
            Some((events, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            MetricEventLoggerRequest::LogOccurrence { .. } => "log_occurrence",
            MetricEventLoggerRequest::LogInteger { .. } => "log_integer",
            MetricEventLoggerRequest::LogIntegerHistogram { .. } => "log_integer_histogram",
            MetricEventLoggerRequest::LogString { .. } => "log_string",
            MetricEventLoggerRequest::LogMetricEvents { .. } => "log_metric_events",
        }
    }
}

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

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

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

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

impl MetricEventLoggerControlHandle {}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerControlHandle::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 MetricEventLoggerLogOccurrenceResponder {
    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 MetricEventLoggerLogOccurrenceResponder {
    type ControlHandle = MetricEventLoggerControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x26308985ae2bb3ac,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerControlHandle::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 MetricEventLoggerLogIntegerResponder {
    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 MetricEventLoggerLogIntegerResponder {
    type ControlHandle = MetricEventLoggerControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x5d453303a88bd552,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerControlHandle::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 MetricEventLoggerLogIntegerHistogramResponder {
    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 MetricEventLoggerLogIntegerHistogramResponder {
    type ControlHandle = MetricEventLoggerControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x79ac8a6bc06a01c0,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerControlHandle::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 MetricEventLoggerLogStringResponder {
    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 MetricEventLoggerLogStringResponder {
    type ControlHandle = MetricEventLoggerControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x1611efbdf6ac8300,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerControlHandle::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 MetricEventLoggerLogMetricEventsResponder {
    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 MetricEventLoggerLogMetricEventsResponder {
    type ControlHandle = MetricEventLoggerControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x4d8c26bb74820c6b,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

impl fidl::endpoints::ProtocolMarker for MetricEventLoggerFactoryMarker {
    type Proxy = MetricEventLoggerFactoryProxy;
    type RequestStream = MetricEventLoggerFactoryRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = MetricEventLoggerFactorySynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.metrics.MetricEventLoggerFactory";
}
impl fidl::endpoints::DiscoverableProtocolMarker for MetricEventLoggerFactoryMarker {}
pub type MetricEventLoggerFactoryCreateMetricEventLoggerResult = Result<(), Error>;
pub type MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult = Result<(), Error>;

pub trait MetricEventLoggerFactoryProxyInterface: Send + Sync {
    type CreateMetricEventLoggerResponseFut: std::future::Future<
            Output = Result<MetricEventLoggerFactoryCreateMetricEventLoggerResult, fidl::Error>,
        > + Send;
    fn r#create_metric_event_logger(
        &self,
        project_spec: &ProjectSpec,
        logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> Self::CreateMetricEventLoggerResponseFut;
    type CreateMetricEventLoggerWithExperimentsResponseFut: std::future::Future<
            Output = Result<
                MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult,
                fidl::Error,
            >,
        > + Send;
    fn r#create_metric_event_logger_with_experiments(
        &self,
        project_spec: &ProjectSpec,
        experiment_ids: &[u32],
        logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> Self::CreateMetricEventLoggerWithExperimentsResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct MetricEventLoggerFactorySynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for MetricEventLoggerFactorySynchronousProxy {
    type Proxy = MetricEventLoggerFactoryProxy;
    type Protocol = MetricEventLoggerFactoryMarker;

    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 MetricEventLoggerFactorySynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name =
            <MetricEventLoggerFactoryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

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

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

    /// Create a MetricEventLogger for the project specified by `project_spec`.
    pub fn r#create_metric_event_logger(
        &self,
        mut project_spec: &ProjectSpec,
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerFactoryCreateMetricEventLoggerResult, fidl::Error> {
        let _response = self.client.send_query::<
            MetricEventLoggerFactoryCreateMetricEventLoggerRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (project_spec, logger,),
            0xd6cf51cee5039fe,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    /// Create a MetricEventLogger with experiment metadata.
    ///
    /// This temporary method exposes experiment data to Cobalt directly from
    /// components. In the future, experiment state will be managed by the
    /// system and passed directly to Cobalt. Contact the Cobalt team before
    /// using this interface.
    ///
    /// To update experiment state create a new logger.
    pub fn r#create_metric_event_logger_with_experiments(
        &self,
        mut project_spec: &ProjectSpec,
        mut experiment_ids: &[u32],
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult, fidl::Error>
    {
        let _response = self.client.send_query::<
            MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (project_spec, experiment_ids, logger,),
            0x7f1f745ef7bf48fa,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }
}

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

impl fidl::endpoints::Proxy for MetricEventLoggerFactoryProxy {
    type Protocol = MetricEventLoggerFactoryMarker;

    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 MetricEventLoggerFactoryProxy {
    /// Create a new Proxy for fuchsia.metrics/MetricEventLoggerFactory.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name =
            <MetricEventLoggerFactoryMarker 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) -> MetricEventLoggerFactoryEventStream {
        MetricEventLoggerFactoryEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Create a MetricEventLogger for the project specified by `project_spec`.
    pub fn r#create_metric_event_logger(
        &self,
        mut project_spec: &ProjectSpec,
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerFactoryCreateMetricEventLoggerResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerFactoryProxyInterface::r#create_metric_event_logger(
            self,
            project_spec,
            logger,
        )
    }

    /// Create a MetricEventLogger with experiment metadata.
    ///
    /// This temporary method exposes experiment data to Cobalt directly from
    /// components. In the future, experiment state will be managed by the
    /// system and passed directly to Cobalt. Contact the Cobalt team before
    /// using this interface.
    ///
    /// To update experiment state create a new logger.
    pub fn r#create_metric_event_logger_with_experiments(
        &self,
        mut project_spec: &ProjectSpec,
        mut experiment_ids: &[u32],
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> fidl::client::QueryResponseFut<
        MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MetricEventLoggerFactoryProxyInterface::r#create_metric_event_logger_with_experiments(
            self,
            project_spec,
            experiment_ids,
            logger,
        )
    }
}

impl MetricEventLoggerFactoryProxyInterface for MetricEventLoggerFactoryProxy {
    type CreateMetricEventLoggerResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerFactoryCreateMetricEventLoggerResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#create_metric_event_logger(
        &self,
        mut project_spec: &ProjectSpec,
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> Self::CreateMetricEventLoggerResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerFactoryCreateMetricEventLoggerResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0xd6cf51cee5039fe,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerFactoryCreateMetricEventLoggerRequest,
            MetricEventLoggerFactoryCreateMetricEventLoggerResult,
        >(
            (project_spec, logger,),
            0xd6cf51cee5039fe,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type CreateMetricEventLoggerWithExperimentsResponseFut = fidl::client::QueryResponseFut<
        MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#create_metric_event_logger_with_experiments(
        &self,
        mut project_spec: &ProjectSpec,
        mut experiment_ids: &[u32],
        mut logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
    ) -> Self::CreateMetricEventLoggerWithExperimentsResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult, fidl::Error>
        {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x7f1f745ef7bf48fa,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest,
            MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResult,
        >(
            (project_spec, experiment_ids, logger,),
            0x7f1f745ef7bf48fa,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

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

#[derive(Debug)]
pub enum MetricEventLoggerFactoryEvent {}

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

/// A Stream of incoming requests for fuchsia.metrics/MetricEventLoggerFactory.
pub struct MetricEventLoggerFactoryRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for MetricEventLoggerFactoryRequestStream {
    type Protocol = MetricEventLoggerFactoryMarker;
    type ControlHandle = MetricEventLoggerFactoryControlHandle;

    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 {
        MetricEventLoggerFactoryControlHandle { 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 MetricEventLoggerFactoryRequestStream {
    type Item = Result<MetricEventLoggerFactoryRequest, 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 MetricEventLoggerFactoryRequestStream 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 {
                0xd6cf51cee5039fe => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(MetricEventLoggerFactoryCreateMetricEventLoggerRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                    fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerFactoryCreateMetricEventLoggerRequest>(&header, _body_bytes, handles, &mut req)?;
                    let control_handle = MetricEventLoggerFactoryControlHandle {
                        inner: this.inner.clone(),
                    };
                    Ok(MetricEventLoggerFactoryRequest::CreateMetricEventLogger {project_spec: req.project_spec,
logger: req.logger,

                        responder: MetricEventLoggerFactoryCreateMetricEventLoggerResponder {
                            control_handle: std::mem::ManuallyDrop::new(control_handle),
                            tx_id: header.tx_id,
                        },
                    })
                }
                0x7f1f745ef7bf48fa => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                    fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest>(&header, _body_bytes, handles, &mut req)?;
                    let control_handle = MetricEventLoggerFactoryControlHandle {
                        inner: this.inner.clone(),
                    };
                    Ok(MetricEventLoggerFactoryRequest::CreateMetricEventLoggerWithExperiments {project_spec: req.project_spec,
experiment_ids: req.experiment_ids,
logger: req.logger,

                        responder: MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResponder {
                            control_handle: std::mem::ManuallyDrop::new(control_handle),
                            tx_id: header.tx_id,
                        },
                    })
                }
                _ => Err(fidl::Error::UnknownOrdinal {
                    ordinal: header.ordinal,
                    protocol_name: <MetricEventLoggerFactoryMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                }),
            }))
            },
        )
    }
}

/// A factory that is used to create a MetricEventLogger for a specific project.
#[derive(Debug)]
pub enum MetricEventLoggerFactoryRequest {
    /// Create a MetricEventLogger for the project specified by `project_spec`.
    CreateMetricEventLogger {
        project_spec: ProjectSpec,
        logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        responder: MetricEventLoggerFactoryCreateMetricEventLoggerResponder,
    },
    /// Create a MetricEventLogger with experiment metadata.
    ///
    /// This temporary method exposes experiment data to Cobalt directly from
    /// components. In the future, experiment state will be managed by the
    /// system and passed directly to Cobalt. Contact the Cobalt team before
    /// using this interface.
    ///
    /// To update experiment state create a new logger.
    CreateMetricEventLoggerWithExperiments {
        project_spec: ProjectSpec,
        experiment_ids: Vec<u32>,
        logger: fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        responder: MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResponder,
    },
}

impl MetricEventLoggerFactoryRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_create_metric_event_logger(
        self,
    ) -> Option<(
        ProjectSpec,
        fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        MetricEventLoggerFactoryCreateMetricEventLoggerResponder,
    )> {
        if let MetricEventLoggerFactoryRequest::CreateMetricEventLogger {
            project_spec,
            logger,
            responder,
        } = self
        {
            Some((project_spec, logger, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_create_metric_event_logger_with_experiments(
        self,
    ) -> Option<(
        ProjectSpec,
        Vec<u32>,
        fidl::endpoints::ServerEnd<MetricEventLoggerMarker>,
        MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResponder,
    )> {
        if let MetricEventLoggerFactoryRequest::CreateMetricEventLoggerWithExperiments {
            project_spec,
            experiment_ids,
            logger,
            responder,
        } = self
        {
            Some((project_spec, experiment_ids, logger, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            MetricEventLoggerFactoryRequest::CreateMetricEventLogger { .. } => {
                "create_metric_event_logger"
            }
            MetricEventLoggerFactoryRequest::CreateMetricEventLoggerWithExperiments { .. } => {
                "create_metric_event_logger_with_experiments"
            }
        }
    }
}

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

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

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

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

impl MetricEventLoggerFactoryControlHandle {}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerFactoryControlHandle::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 MetricEventLoggerFactoryCreateMetricEventLoggerResponder {
    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 MetricEventLoggerFactoryCreateMetricEventLoggerResponder {
    type ControlHandle = MetricEventLoggerFactoryControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0xd6cf51cee5039fe,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

/// Set the the channel to be shutdown (see [`MetricEventLoggerFactoryControlHandle::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 MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResponder {
    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 MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsResponder
{
    type ControlHandle = MetricEventLoggerFactoryControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x7f1f745ef7bf48fa,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for Error {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<i32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<i32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for Error {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for Error {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Error {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::InternalError
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<i32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for HistogramBucket {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for HistogramBucket {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<HistogramBucket, D>
        for &HistogramBucket
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<HistogramBucket>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut HistogramBucket)
                    .write_unaligned((self as *const HistogramBucket).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
                let padding_ptr = buf_ptr.offset(0) as *mut u64;
                let padding_mask = 0xffffffff00000000u64;
                padding_ptr.write_unaligned(padding_ptr.read_unaligned() & !padding_mask);
            }
            Ok(())
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<u64, D>,
        > fidl::encoding::Encode<HistogramBucket, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<HistogramBucket>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for HistogramBucket {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { index: fidl::new_empty!(u32, D), count: fidl::new_empty!(u64, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            let ptr = unsafe { buf_ptr.offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEvent {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEvent {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            40
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<MetricEvent, D>
        for &MetricEvent
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEvent>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEvent, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.metric_id),
                    <fidl::encoding::Vector<u32, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.event_codes,
                    ),
                    <MetricEventPayload as fidl::encoding::ValueTypeMarker>::borrow(&self.payload),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Vector<u32, 10>, D>,
            T2: fidl::encoding::Encode<MetricEventPayload, D>,
        > fidl::encoding::Encode<MetricEvent, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEvent>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for MetricEvent {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                metric_id: fidl::new_empty!(u32, D),
                event_codes: fidl::new_empty!(fidl::encoding::Vector<u32, 10>, D),
                payload: fidl::new_empty!(MetricEventPayload, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.metric_id, decoder, offset + 0, _depth)?;
            fidl::decode!(fidl::encoding::Vector<u32, 10>, D, &mut self.event_codes, decoder, offset + 8, _depth)?;
            fidl::decode!(MetricEventPayload, D, &mut self.payload, decoder, offset + 24, _depth)?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            MetricEventLoggerFactoryCreateMetricEventLoggerRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut MetricEventLoggerFactoryCreateMetricEventLoggerRequest
    {
        #[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::<MetricEventLoggerFactoryCreateMetricEventLoggerRequest>(
                offset,
            );
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerFactoryCreateMetricEventLoggerRequest, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <ProjectSpec as fidl::encoding::ValueTypeMarker>::borrow(&self.project_spec),
                    <fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.logger),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<ProjectSpec, fidl::encoding::DefaultFuchsiaResourceDialect>,
            T1: fidl::encoding::Encode<
                fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        >
        fidl::encoding::Encode<
            MetricEventLoggerFactoryCreateMetricEventLoggerRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[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::<MetricEventLoggerFactoryCreateMetricEventLoggerRequest>(
                offset,
            );
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(16);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for MetricEventLoggerFactoryCreateMetricEventLoggerRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                project_spec: fidl::new_empty!(
                    ProjectSpec,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                logger: fidl::new_empty!(
                    fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                    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.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(16) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 16 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                ProjectSpec,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.project_spec,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.logger,
                decoder,
                offset + 16,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            40
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest
    {
        #[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::<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <ProjectSpec as fidl::encoding::ValueTypeMarker>::borrow(&self.project_spec),
                    <fidl::encoding::Vector<u32, 100> as fidl::encoding::ValueTypeMarker>::borrow(&self.experiment_ids),
                    <fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.logger),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<ProjectSpec, fidl::encoding::DefaultFuchsiaResourceDialect>,
            T1: fidl::encoding::Encode<
                fidl::encoding::Vector<u32, 100>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            T2: fidl::encoding::Encode<
                fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        >
        fidl::encoding::Encode<
            MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1, T2)
    {
        #[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::<MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(32);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            self.2.encode(encoder, offset + 32, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for MetricEventLoggerFactoryCreateMetricEventLoggerWithExperimentsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                project_spec: fidl::new_empty!(
                    ProjectSpec,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                experiment_ids: fidl::new_empty!(fidl::encoding::Vector<u32, 100>, fidl::encoding::DefaultFuchsiaResourceDialect),
                logger: fidl::new_empty!(
                    fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                    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.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(32) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 32 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                ProjectSpec,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.project_spec,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(fidl::encoding::Vector<u32, 100>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.experiment_ids, decoder, offset + 16, _depth)?;
            fidl::decode!(
                fidl::encoding::Endpoint<fidl::endpoints::ServerEnd<MetricEventLoggerMarker>>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.logger,
                decoder,
                offset + 32,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventLoggerLogIntegerHistogramRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventLoggerLogIntegerHistogramRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            40
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<MetricEventLoggerLogIntegerHistogramRequest, D>
        for &MetricEventLoggerLogIntegerHistogramRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogIntegerHistogramRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerLogIntegerHistogramRequest, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.metric_id),
                    <fidl::encoding::Vector<HistogramBucket, 500> as fidl::encoding::ValueTypeMarker>::borrow(&self.histogram),
                    <fidl::encoding::Vector<u32, 10> as fidl::encoding::ValueTypeMarker>::borrow(&self.event_codes),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Vector<HistogramBucket, 500>, D>,
            T2: fidl::encoding::Encode<fidl::encoding::Vector<u32, 10>, D>,
        > fidl::encoding::Encode<MetricEventLoggerLogIntegerHistogramRequest, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogIntegerHistogramRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for MetricEventLoggerLogIntegerHistogramRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                metric_id: fidl::new_empty!(u32, D),
                histogram: fidl::new_empty!(fidl::encoding::Vector<HistogramBucket, 500>, D),
                event_codes: fidl::new_empty!(fidl::encoding::Vector<u32, 10>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.metric_id, decoder, offset + 0, _depth)?;
            fidl::decode!(fidl::encoding::Vector<HistogramBucket, 500>, D, &mut self.histogram, decoder, offset + 8, _depth)?;
            fidl::decode!(fidl::encoding::Vector<u32, 10>, D, &mut self.event_codes, decoder, offset + 24, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventLoggerLogIntegerRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventLoggerLogIntegerRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            32
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<MetricEventLoggerLogIntegerRequest, D>
        for &MetricEventLoggerLogIntegerRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogIntegerRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerLogIntegerRequest, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.metric_id),
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(&self.value),
                    <fidl::encoding::Vector<u32, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.event_codes,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<i64, D>,
            T2: fidl::encoding::Encode<fidl::encoding::Vector<u32, 10>, D>,
        > fidl::encoding::Encode<MetricEventLoggerLogIntegerRequest, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogIntegerRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for MetricEventLoggerLogIntegerRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                metric_id: fidl::new_empty!(u32, D),
                value: fidl::new_empty!(i64, D),
                event_codes: fidl::new_empty!(fidl::encoding::Vector<u32, 10>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.metric_id, decoder, offset + 0, _depth)?;
            fidl::decode!(i64, D, &mut self.value, decoder, offset + 8, _depth)?;
            fidl::decode!(fidl::encoding::Vector<u32, 10>, D, &mut self.event_codes, decoder, offset + 16, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventLoggerLogMetricEventsRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventLoggerLogMetricEventsRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<MetricEventLoggerLogMetricEventsRequest, D>
        for &MetricEventLoggerLogMetricEventsRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogMetricEventsRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerLogMetricEventsRequest, D>::encode(
                (
                    <fidl::encoding::Vector<MetricEvent, 500> as fidl::encoding::ValueTypeMarker>::borrow(&self.events),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::Vector<MetricEvent, 500>, D>,
        > fidl::encoding::Encode<MetricEventLoggerLogMetricEventsRequest, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogMetricEventsRequest>(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<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for MetricEventLoggerLogMetricEventsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { events: fidl::new_empty!(fidl::encoding::Vector<MetricEvent, 500>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<MetricEvent, 500>, D, &mut self.events, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventLoggerLogOccurrenceRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventLoggerLogOccurrenceRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            32
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<MetricEventLoggerLogOccurrenceRequest, D>
        for &MetricEventLoggerLogOccurrenceRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogOccurrenceRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerLogOccurrenceRequest, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.metric_id),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.count),
                    <fidl::encoding::Vector<u32, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.event_codes,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<u64, D>,
            T2: fidl::encoding::Encode<fidl::encoding::Vector<u32, 10>, D>,
        > fidl::encoding::Encode<MetricEventLoggerLogOccurrenceRequest, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogOccurrenceRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for MetricEventLoggerLogOccurrenceRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                metric_id: fidl::new_empty!(u32, D),
                count: fidl::new_empty!(u64, D),
                event_codes: fidl::new_empty!(fidl::encoding::Vector<u32, 10>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.metric_id, decoder, offset + 0, _depth)?;
            fidl::decode!(u64, D, &mut self.count, decoder, offset + 8, _depth)?;
            fidl::decode!(fidl::encoding::Vector<u32, 10>, D, &mut self.event_codes, decoder, offset + 16, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventLoggerLogStringRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventLoggerLogStringRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            40
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<MetricEventLoggerLogStringRequest, D>
        for &MetricEventLoggerLogStringRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogStringRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MetricEventLoggerLogStringRequest, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.metric_id),
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.string_value,
                    ),
                    <fidl::encoding::Vector<u32, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.event_codes,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<fidl::encoding::BoundedString<256>, D>,
            T2: fidl::encoding::Encode<fidl::encoding::Vector<u32, 10>, D>,
        > fidl::encoding::Encode<MetricEventLoggerLogStringRequest, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventLoggerLogStringRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for MetricEventLoggerLogStringRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                metric_id: fidl::new_empty!(u32, D),
                string_value: fidl::new_empty!(fidl::encoding::BoundedString<256>, D),
                event_codes: fidl::new_empty!(fidl::encoding::Vector<u32, 10>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.metric_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::BoundedString<256>,
                D,
                &mut self.string_value,
                decoder,
                offset + 8,
                _depth
            )?;
            fidl::decode!(fidl::encoding::Vector<u32, 10>, D, &mut self.event_codes, decoder, offset + 24, _depth)?;
            Ok(())
        }
    }

    impl ProjectSpec {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.project_id {
                return 2;
            }
            if let Some(_) = self.customer_id {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for ProjectSpec {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ProjectSpec {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ProjectSpec, D>
        for &ProjectSpec
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProjectSpec>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.customer_id.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.project_id.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ProjectSpec {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.customer_id.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.project_id.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for MetricEventPayload {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MetricEventPayload {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<MetricEventPayload, D>
        for &MetricEventPayload
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MetricEventPayload>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            MetricEventPayload::Count(ref val) => {
                fidl::encoding::encode_in_envelope::<u64, D>(
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            MetricEventPayload::IntegerValue(ref val) => {
                fidl::encoding::encode_in_envelope::<i64, D>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            MetricEventPayload::Histogram(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::Vector<HistogramBucket, 500>, D>(
                    <fidl::encoding::Vector<HistogramBucket, 500> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            MetricEventPayload::StringValue(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::BoundedString<256>, D>(
                    <fidl::encoding::BoundedString<256> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            MetricEventPayload::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for MetricEventPayload {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[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 => <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::Vector<HistogramBucket, 500> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            4 => <fidl::encoding::BoundedString<256> 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 MetricEventPayload::Count(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = MetricEventPayload::Count(fidl::new_empty!(u64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::Count(ref mut val) = self {
                        fidl::decode!(u64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::IntegerValue(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = MetricEventPayload::IntegerValue(fidl::new_empty!(i64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::IntegerValue(ref mut val) = self {
                        fidl::decode!(i64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::Histogram(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = MetricEventPayload::Histogram(
                            fidl::new_empty!(fidl::encoding::Vector<HistogramBucket, 500>, D),
                        );
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::Histogram(ref mut val) = self {
                        fidl::decode!(fidl::encoding::Vector<HistogramBucket, 500>, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::StringValue(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = MetricEventPayload::StringValue(fidl::new_empty!(
                            fidl::encoding::BoundedString<256>,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let MetricEventPayload::StringValue(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::BoundedString<256>,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = MetricEventPayload::__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(())
        }
    }
}