tools/fidl/fidlgen_rust/goldens/union.rs.golden

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

// fidl_experiment = no_optional_structs
// fidl_experiment = output_index_json
// fidl_experiment = unknown_interactions
// fidl_experiment = unknown_interactions_mandate

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

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

#[cfg(target_os = "fuchsia")]
use fuchsia_zircon as zx;

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

impl fidl::Persistable for Empty {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct NullableUnionStruct {
    pub the_union: Option<Box<Union>>,
}

impl fidl::Persistable for NullableUnionStruct {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Pasta {
    pub sauce: String,
}

impl fidl::Persistable for Pasta {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Pizza {
    pub toppings: Vec<String>,
}

impl fidl::Persistable for Pizza {}

#[derive(Clone, Debug, PartialEq)]
pub struct StructWithNullableUnion {
    pub x1: Option<Box<OlderSimpleUnion>>,
}

impl fidl::Persistable for StructWithNullableUnion {}

#[derive(Clone, Debug, PartialEq)]
pub struct TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse {
    pub xu: OlderSimpleUnion,
}

impl fidl::Persistable for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse {
    pub xu: StrictBoundedUnion,
}

impl fidl::Persistable for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse {}

#[derive(Clone, Debug, PartialEq)]
pub struct UnionSandwich {
    pub a: u32,
    pub u: ExplicitFlexibleUnion,
    pub b: u32,
}

impl fidl::Persistable for UnionSandwich {}

#[derive(Clone, Debug)]
pub enum EmptyFlexibleUnion {
    #[deprecated = "Use `EmptyFlexibleUnion::unknown()` to construct and `EmptyFlexibleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown { ordinal: u64 },
}

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

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

impl EmptyFlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            #[allow(deprecated)]
            Self::__Unknown { .. } => true,
        }
    }
}

impl fidl::Persistable for EmptyFlexibleUnion {}

#[derive(Clone, Debug)]
pub enum ExplicitFlexibleUnion {
    I(i64),
    F(f32),
    #[deprecated = "Use `ExplicitFlexibleUnion::unknown()` to construct and `ExplicitFlexibleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl ExplicitFlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 4,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for ExplicitFlexibleUnion {}

#[derive(Clone, Debug)]
pub enum ExplicitFoo {
    I(i32),
    S(String),
    #[deprecated = "Use `ExplicitFoo::unknown()` to construct and `ExplicitFooUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl ExplicitFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::S(_) => 2,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for ExplicitFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitPizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

impl ExplicitPizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 4,
        }
    }

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

impl fidl::Persistable for ExplicitPizzaOrPasta {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitStrictFoo {
    I(i32),
    S(String),
}

impl ExplicitStrictFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 2,
            Self::S(_) => 3,
        }
    }

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

impl fidl::Persistable for ExplicitStrictFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
}

impl ExplicitUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 3,
        }
    }

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

impl fidl::Persistable for ExplicitUnion {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum FieldCollision {
    FieldCollisionTag(i32),
}

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

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

impl fidl::Persistable for FieldCollision {}

#[derive(Clone, Debug)]
pub enum FlexibleFoo {
    S(String),
    I(i32),
    #[deprecated = "Use `FlexibleFoo::unknown()` to construct and `FlexibleFooUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl FlexibleFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::S(_) => 1,
            Self::I(_) => 2,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for FlexibleFoo {}

#[derive(Clone, Debug)]
pub enum FlexiblePizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
    #[deprecated = "Use `FlexiblePizzaOrPasta::unknown()` to construct and `FlexiblePizzaOrPastaUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl FlexiblePizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 2,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for FlexiblePizzaOrPasta {}

#[derive(Clone, Debug)]
pub enum FlexibleUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
    #[deprecated = "Use `FlexibleUnion::unknown()` to construct and `FlexibleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl FlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for FlexibleUnion {}

#[derive(Clone, Debug)]
pub enum NewerSimpleUnion {
    I(i64),
    S(String),
    V(Vec<String>),
    #[deprecated = "Use `NewerSimpleUnion::unknown()` to construct and `NewerSimpleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl NewerSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::S(_) => 2,
            Self::V(_) => 3,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for NewerSimpleUnion {}

#[derive(Clone, Debug)]
pub enum OlderSimpleUnion {
    I(i64),
    F(f32),
    #[deprecated = "Use `OlderSimpleUnion::unknown()` to construct and `OlderSimpleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl OlderSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 2,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for OlderSimpleUnion {}

#[derive(Clone, Debug)]
pub enum OnlyReservedFlexibleUnion {
    #[deprecated = "Use `OnlyReservedFlexibleUnion::unknown()` to construct and `OnlyReservedFlexibleUnionUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown { ordinal: u64 },
}

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

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

impl OnlyReservedFlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            #[allow(deprecated)]
            Self::__Unknown { .. } => true,
        }
    }
}

impl fidl::Persistable for OnlyReservedFlexibleUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum PizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

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

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

impl fidl::Persistable for PizzaOrPasta {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ReverseOrdinalUnion {
    First(u32),
    Second(u32),
}

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

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

impl fidl::Persistable for ReverseOrdinalUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictBoundedUnion {
    V(Vec<u8>),
}

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

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

impl fidl::Persistable for StrictBoundedUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictFoo {
    S(String),
    I(i32),
}

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

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

impl fidl::Persistable for StrictFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictPizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

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

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

impl fidl::Persistable for StrictPizzaOrPasta {}

#[derive(Clone, Debug, PartialEq, PartialOrd)]
pub enum StrictSimpleUnion {
    I(i32),
    F(f32),
    S(String),
}

impl StrictSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 2,
            Self::S(_) => 3,
        }
    }

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

impl fidl::Persistable for StrictSimpleUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
}

impl StrictUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
        }
    }

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

impl fidl::Persistable for StrictUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum Union {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
}

impl Union {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
        }
    }

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

impl fidl::Persistable for Union {}

#[derive(Clone, Debug)]
pub enum UnionContainingEmptyStruct {
    Empty(Empty),
    #[deprecated = "Use `UnionContainingEmptyStruct::unknown()` to construct and `UnionContainingEmptyStructUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl UnionContainingEmptyStruct {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Empty(_) => 1,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for UnionContainingEmptyStruct {}

#[derive(Clone, Debug)]
pub enum UnionWithAttributes {
    X(i64),
    #[deprecated = "Use `UnionWithAttributes::unknown()` to construct and `UnionWithAttributesUnknown!()` to exhaustively match."]
    #[doc(hidden)]
    #[non_exhaustive]
    __Unknown {
        ordinal: u64,
    },
}

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

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

impl UnionWithAttributes {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::X(_) => 1,
            #[allow(deprecated)]
            Self::__Unknown { ordinal } => ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        #[allow(deprecated)]
        Self::__Unknown { ordinal: 0 }
    }

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

impl fidl::Persistable for UnionWithAttributes {}

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

impl fidl::endpoints::ProtocolMarker for TestProtocolMarker {
    type Proxy = TestProtocolProxy;
    type RequestStream = TestProtocolRequestStream;
    const DEBUG_NAME: &'static str = "(anonymous) TestProtocol";
}

pub trait TestProtocolProxyInterface: Send + Sync {
    type StrictUnionHenceResponseMayBeStackAllocatedResponseFut: std::future::Future<Output = Result<StrictBoundedUnion, fidl::Error>>
        + Send;
    fn r#strict_union_hence_response_may_be_stack_allocated(
        &self,
    ) -> Self::StrictUnionHenceResponseMayBeStackAllocatedResponseFut;
    type FlexibleUnionHenceResponseMustBeHeapAllocatedResponseFut: std::future::Future<Output = Result<OlderSimpleUnion, fidl::Error>>
        + Send;
    fn r#flexible_union_hence_response_must_be_heap_allocated(
        &self,
    ) -> Self::FlexibleUnionHenceResponseMustBeHeapAllocatedResponseFut;
}

#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct TestProtocolSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl TestProtocolSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <TestProtocolMarker 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::Time) -> Result<TestProtocolEvent, fidl::Error> {
        TestProtocolEvent::decode(self.client.wait_for_event(deadline)?)
    }

    pub fn r#strict_union_hence_response_may_be_stack_allocated(
        &self,
        ___deadline: zx::Time,
    ) -> Result<StrictBoundedUnion, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse,
        >(
            (),
            0x5bfca9479251b9c3,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.xu)
    }

    pub fn r#flexible_union_hence_response_must_be_heap_allocated(
        &self,
        ___deadline: zx::Time,
    ) -> Result<OlderSimpleUnion, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse,
        >(
            (),
            0x694fede3b8829ce2,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.xu)
    }
}

#[derive(Debug, Clone)]
pub struct TestProtocolProxy {
    client: fidl::client::Client,
}

impl fidl::endpoints::Proxy for TestProtocolProxy {
    type Protocol = TestProtocolMarker;

    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 TestProtocolProxy {
    /// Create a new Proxy for test.union/TestProtocol.
    pub fn new(channel: fidl::AsyncChannel) -> Self {
        let protocol_name = <TestProtocolMarker 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) -> TestProtocolEventStream {
        TestProtocolEventStream { event_receiver: self.client.take_event_receiver() }
    }

    pub fn r#strict_union_hence_response_may_be_stack_allocated(
        &self,
    ) -> fidl::client::QueryResponseFut<StrictBoundedUnion> {
        TestProtocolProxyInterface::r#strict_union_hence_response_may_be_stack_allocated(self)
    }

    pub fn r#flexible_union_hence_response_must_be_heap_allocated(
        &self,
    ) -> fidl::client::QueryResponseFut<OlderSimpleUnion> {
        TestProtocolProxyInterface::r#flexible_union_hence_response_must_be_heap_allocated(self)
    }
}

impl TestProtocolProxyInterface for TestProtocolProxy {
    type StrictUnionHenceResponseMayBeStackAllocatedResponseFut =
        fidl::client::QueryResponseFut<StrictBoundedUnion>;
    fn r#strict_union_hence_response_may_be_stack_allocated(
        &self,
    ) -> Self::StrictUnionHenceResponseMayBeStackAllocatedResponseFut {
        fn _decode(
            mut _buf: Result<fidl::MessageBufEtc, fidl::Error>,
        ) -> Result<StrictBoundedUnion, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse,
                0x5bfca9479251b9c3,
            >(_buf?)?;
            Ok(_response.xu)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, StrictBoundedUnion>(
            (),
            0x5bfca9479251b9c3,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type FlexibleUnionHenceResponseMustBeHeapAllocatedResponseFut =
        fidl::client::QueryResponseFut<OlderSimpleUnion>;
    fn r#flexible_union_hence_response_must_be_heap_allocated(
        &self,
    ) -> Self::FlexibleUnionHenceResponseMustBeHeapAllocatedResponseFut {
        fn _decode(
            mut _buf: Result<fidl::MessageBufEtc, fidl::Error>,
        ) -> Result<OlderSimpleUnion, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse,
                0x694fede3b8829ce2,
            >(_buf?)?;
            Ok(_response.xu)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, OlderSimpleUnion>(
            (),
            0x694fede3b8829ce2,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct TestProtocolEventStream {
    event_receiver: fidl::client::EventReceiver,
}

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

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

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

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

impl TestProtocolEvent {
    /// Decodes a message buffer as a [`TestProtocolEvent`].
    fn decode(mut buf: fidl::MessageBufEtc) -> Result<TestProtocolEvent, 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: <TestProtocolMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for test.union/TestProtocol.
pub struct TestProtocolRequestStream {
    inner: std::sync::Arc<fidl::ServeInner>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for TestProtocolRequestStream {
    type Protocol = TestProtocolMarker;
    type ControlHandle = TestProtocolControlHandle;

    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 {
        TestProtocolControlHandle { inner: self.inner.clone() }
    }

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

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

impl futures::Stream for TestProtocolRequestStream {
    type Item = Result<TestProtocolRequest, 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 TestProtocolRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf(|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))))
                }
            }

            // 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 {
                0x5bfca9479251b9c3 => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(fidl::encoding::EmptyPayload);
                    fidl::encoding::Decoder::decode_into::<fidl::encoding::EmptyPayload>(
                        &header,
                        _body_bytes,
                        handles,
                        &mut req,
                    )?;
                    let control_handle = TestProtocolControlHandle { inner: this.inner.clone() };
                    Ok(TestProtocolRequest::StrictUnionHenceResponseMayBeStackAllocated {
                        responder:
                            TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                    })
                }
                0x694fede3b8829ce2 => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(fidl::encoding::EmptyPayload);
                    fidl::encoding::Decoder::decode_into::<fidl::encoding::EmptyPayload>(
                        &header,
                        _body_bytes,
                        handles,
                        &mut req,
                    )?;
                    let control_handle = TestProtocolControlHandle { inner: this.inner.clone() };
                    Ok(TestProtocolRequest::FlexibleUnionHenceResponseMustBeHeapAllocated {
                        responder:
                            TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                    })
                }
                _ => Err(fidl::Error::UnknownOrdinal {
                    ordinal: header.ordinal,
                    protocol_name:
                        <TestProtocolMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                }),
            }))
        })
    }
}

#[derive(Debug)]
pub enum TestProtocolRequest {
    StrictUnionHenceResponseMayBeStackAllocated {
        responder: TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponder,
    },
    FlexibleUnionHenceResponseMustBeHeapAllocated {
        responder: TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponder,
    },
}

impl TestProtocolRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_strict_union_hence_response_may_be_stack_allocated(
        self,
    ) -> Option<(TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponder)> {
        if let TestProtocolRequest::StrictUnionHenceResponseMayBeStackAllocated { responder } = self
        {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_flexible_union_hence_response_must_be_heap_allocated(
        self,
    ) -> Option<(TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponder)> {
        if let TestProtocolRequest::FlexibleUnionHenceResponseMustBeHeapAllocated { responder } =
            self
        {
            Some((responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            TestProtocolRequest::StrictUnionHenceResponseMayBeStackAllocated { .. } => {
                "strict_union_hence_response_may_be_stack_allocated"
            }
            TestProtocolRequest::FlexibleUnionHenceResponseMustBeHeapAllocated { .. } => {
                "flexible_union_hence_response_must_be_heap_allocated"
            }
        }
    }
}

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

impl fidl::endpoints::ControlHandle for TestProtocolControlHandle {
    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<'a>(&'a self) -> fidl::OnSignals<'a> {
        self.inner.channel().on_closed()
    }
}

impl TestProtocolControlHandle {}

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

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

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

    fn send_raw(&self, mut xu: &StrictBoundedUnion) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>(
                (xu,),
                self.tx_id,
                0x5bfca9479251b9c3,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

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

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

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

    fn send_raw(&self, mut xu: &OlderSimpleUnion) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>(
                (xu,),
                self.tx_id,
                0x694fede3b8829ce2,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

mod internal {
    use super::*;

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 1,
                fidl::encoding::WireFormatVersion::V2 => 1,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 1,
                fidl::encoding::WireFormatVersion::V2 => 1,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for Empty {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<Empty> for &Empty {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Empty>(offset);
            encoder.write_num(0u8, offset);
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for Empty {
        #[inline(always)]
        fn new_empty() -> Self {
            Self
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            match decoder.read_num::<u8>(offset) {
                0 => Ok(()),
                _ => Err(fidl::Error::Invalid),
            }
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for NullableUnionStruct {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<NullableUnionStruct> for &NullableUnionStruct {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NullableUnionStruct>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<NullableUnionStruct>::encode(
                (
                    <fidl::encoding::OptionalUnion<Union> as fidl::encoding::ValueTypeMarker>::borrow(&self.the_union),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<T0: fidl::encoding::Encode<fidl::encoding::OptionalUnion<Union>>>
        fidl::encoding::Encode<NullableUnionStruct> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NullableUnionStruct>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for NullableUnionStruct {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { the_union: fidl::new_empty!(fidl::encoding::OptionalUnion<Union>) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(
                fidl::encoding::OptionalUnion<Union>,
                &mut self.the_union,
                decoder,
                offset + member_offset,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 16,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for Pasta {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<Pasta> for &Pasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pasta>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Pasta>::encode(
                (<fidl::encoding::BoundedString<16> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.sauce,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<T0: fidl::encoding::Encode<fidl::encoding::BoundedString<16>>>
        fidl::encoding::Encode<Pasta> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pasta>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for Pasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { sauce: fidl::new_empty!(fidl::encoding::BoundedString<16>) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(
                fidl::encoding::BoundedString<16>,
                &mut self.sauce,
                decoder,
                offset + member_offset,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 16,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for Pizza {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<Pizza> for &Pizza {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pizza>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Pizza>::encode(
                (
                    <fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>> as fidl::encoding::ValueTypeMarker>::borrow(&self.toppings),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<
                fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>,
            >,
        > fidl::encoding::Encode<Pizza> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pizza>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for Pizza {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                toppings: fidl::new_empty!(
                    fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(
                fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>,
                &mut self.toppings,
                decoder,
                offset + member_offset,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StructWithNullableUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StructWithNullableUnion> for &StructWithNullableUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StructWithNullableUnion>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StructWithNullableUnion>::encode(
                (
                    <fidl::encoding::OptionalUnion<OlderSimpleUnion> as fidl::encoding::ValueTypeMarker>::borrow(&self.x1),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<T0: fidl::encoding::Encode<fidl::encoding::OptionalUnion<OlderSimpleUnion>>>
        fidl::encoding::Encode<StructWithNullableUnion> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StructWithNullableUnion>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for StructWithNullableUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { x1: fidl::new_empty!(fidl::encoding::OptionalUnion<OlderSimpleUnion>) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(
                fidl::encoding::OptionalUnion<OlderSimpleUnion>,
                &mut self.x1,
                decoder,
                offset + member_offset,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker
        for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl
        fidl::encoding::Encode<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>
        for &TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse,
            >::encode(
                (<OlderSimpleUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.xu),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<T0: fidl::encoding::Encode<OlderSimpleUnion>>
        fidl::encoding::Encode<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>
        for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self>
        for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { xu: fidl::new_empty!(OlderSimpleUnion) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(OlderSimpleUnion, &mut self.xu, decoder, offset + member_offset, _depth)?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker
        for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl
        fidl::encoding::Encode<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>
        for &TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>::encode(
                (
                    <StrictBoundedUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.xu),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<T0: fidl::encoding::Encode<StrictBoundedUnion>>
        fidl::encoding::Encode<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>
        for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self>
        for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { xu: fidl::new_empty!(StrictBoundedUnion) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {}
                fidl::encoding::WireFormatVersion::V2 => {}
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(
                StrictBoundedUnion,
                &mut self.xu,
                decoder,
                offset + member_offset,
                _depth
            )?;
            Ok(())
        }
    }

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

        #[inline(always)]
        fn inline_align(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            }
        }

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 40,
                fidl::encoding::WireFormatVersion::V2 => 32,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for UnionSandwich {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<UnionSandwich> for &UnionSandwich {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionSandwich>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<UnionSandwich>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.a),
                    <ExplicitFlexibleUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.u),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.b),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<u32>,
            T1: fidl::encoding::Encode<ExplicitFlexibleUnion>,
            T2: fidl::encoding::Encode<u32>,
        > fidl::encoding::Encode<UnionSandwich> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionSandwich>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {
                    unsafe {
                        let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                        (ptr as *mut u64).write_unaligned(0);
                    }
                    unsafe {
                        let ptr = encoder.buf.as_mut_ptr().add(offset).offset(32);
                        (ptr as *mut u64).write_unaligned(0);
                    }
                }
                fidl::encoding::WireFormatVersion::V2 => {
                    unsafe {
                        let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                        (ptr as *mut u64).write_unaligned(0);
                    }
                    unsafe {
                        let ptr = encoder.buf.as_mut_ptr().add(offset).offset(24);
                        (ptr as *mut u64).write_unaligned(0);
                    }
                }
            };
            // Write the fields.
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            self.0.encode(encoder, offset + member_offset, depth)?;
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            };
            self.1.encode(encoder, offset + member_offset, depth)?;
            let member_offset = match encoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 32,
                fidl::encoding::WireFormatVersion::V2 => 24,
            };
            self.2.encode(encoder, offset + member_offset, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self> for UnionSandwich {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                a: fidl::new_empty!(u32),
                u: fidl::new_empty!(ExplicitFlexibleUnion),
                b: fidl::new_empty!(u32),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => {
                    let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
                    let padval = unsafe { (ptr as *const u64).read_unaligned() };
                    let maskedval = padval & 0xffffffff00000000u64;
                    if (maskedval != 0) {
                        return Err(fidl::Error::NonZeroPadding {
                            padding_start: offset
                                + 0
                                + ((0xffffffff00000000u64 as u64).trailing_zeros() / 8) as usize,
                        });
                    }
                    let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(32) };
                    let padval = unsafe { (ptr as *const u64).read_unaligned() };
                    let maskedval = padval & 0xffffffff00000000u64;
                    if (maskedval != 0) {
                        return Err(fidl::Error::NonZeroPadding {
                            padding_start: offset
                                + 32
                                + ((0xffffffff00000000u64 as u64).trailing_zeros() / 8) as usize,
                        });
                    }
                }
                fidl::encoding::WireFormatVersion::V2 => {
                    let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
                    let padval = unsafe { (ptr as *const u64).read_unaligned() };
                    let maskedval = padval & 0xffffffff00000000u64;
                    if (maskedval != 0) {
                        return Err(fidl::Error::NonZeroPadding {
                            padding_start: offset
                                + 0
                                + ((0xffffffff00000000u64 as u64).trailing_zeros() / 8) as usize,
                        });
                    }
                    let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(24) };
                    let padval = unsafe { (ptr as *const u64).read_unaligned() };
                    let maskedval = padval & 0xffffffff00000000u64;
                    if (maskedval != 0) {
                        return Err(fidl::Error::NonZeroPadding {
                            padding_start: offset
                                + 24
                                + ((0xffffffff00000000u64 as u64).trailing_zeros() / 8) as usize,
                        });
                    }
                }
            };
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 0,
                fidl::encoding::WireFormatVersion::V2 => 0,
            };
            fidl::decode!(u32, &mut self.a, decoder, offset + member_offset, _depth)?;
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 8,
                fidl::encoding::WireFormatVersion::V2 => 8,
            };
            fidl::decode!(
                ExplicitFlexibleUnion,
                &mut self.u,
                decoder,
                offset + member_offset,
                _depth
            )?;
            let member_offset = match decoder.context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 32,
                fidl::encoding::WireFormatVersion::V2 => 24,
            };
            fidl::decode!(u32, &mut self.b, decoder, offset + member_offset, _depth)?;
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for EmptyFlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<EmptyFlexibleUnion> for &EmptyFlexibleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<EmptyFlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                #[allow(deprecated)]
                EmptyFlexibleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for EmptyFlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 {
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 {
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = EmptyFlexibleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ExplicitFlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ExplicitFlexibleUnion> for &ExplicitFlexibleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitFlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitFlexibleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i64>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFlexibleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                #[allow(deprecated)]
                ExplicitFlexibleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for ExplicitFlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                4 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 ExplicitFlexibleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFlexibleUnion::I(fidl::new_empty!(i64));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFlexibleUnion::F(fidl::new_empty!(f32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = ExplicitFlexibleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ExplicitFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ExplicitFoo> for &ExplicitFoo {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                #[allow(deprecated)]
                ExplicitFoo::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for ExplicitFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 ExplicitFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFoo::I(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::I(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = ExplicitFoo::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ExplicitPizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ExplicitPizzaOrPasta> for &ExplicitPizzaOrPasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitPizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitPizzaOrPasta::Pizza(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pizza>(
                        <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                ExplicitPizzaOrPasta::Pasta(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pasta>(
                        <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl fidl::encoding::Decode<Self> for ExplicitPizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                4 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 ExplicitPizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitPizzaOrPasta::Pizza(fidl::new_empty!(Pizza));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitPizzaOrPasta::Pasta(fidl::new_empty!(Pasta));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ExplicitStrictFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ExplicitStrictFoo> for &ExplicitStrictFoo {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitStrictFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitStrictFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitStrictFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for ExplicitStrictFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::I(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 {
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 {
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitStrictFoo::I(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::I(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            ExplicitStrictFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ExplicitUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ExplicitUnion> for &ExplicitUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            ExplicitUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            ExplicitUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl fidl::encoding::Decode<Self> for ExplicitUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 ExplicitUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitUnion::Primitive(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for FieldCollision {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<FieldCollision> for &FieldCollision {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FieldCollision>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FieldCollision::FieldCollisionTag(ref val) => {
                    fidl::encoding::encode_in_envelope::<i32>(
                        <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl fidl::encoding::Decode<Self> for FieldCollision {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::FieldCollisionTag(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 FieldCollision::FieldCollisionTag(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FieldCollision::FieldCollisionTag(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FieldCollision::FieldCollisionTag(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for FlexibleFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<FlexibleFoo> for &FlexibleFoo {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexibleFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FlexibleFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                FlexibleFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                #[allow(deprecated)]
                FlexibleFoo::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for FlexibleFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 FlexibleFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleFoo::I(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::I(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexibleFoo::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for FlexiblePizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<FlexiblePizzaOrPasta> for &FlexiblePizzaOrPasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexiblePizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FlexiblePizzaOrPasta::Pizza(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pizza>(
                        <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                FlexiblePizzaOrPasta::Pasta(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pasta>(
                        <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                #[allow(deprecated)]
                FlexiblePizzaOrPasta::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for FlexiblePizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 FlexiblePizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexiblePizzaOrPasta::Pizza(fidl::new_empty!(Pizza));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexiblePizzaOrPasta::Pasta(fidl::new_empty!(Pasta));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexiblePizzaOrPasta::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for FlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<FlexibleUnion> for &FlexibleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            FlexibleUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            FlexibleUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            FlexibleUnion::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            #[allow(deprecated)]
            FlexibleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
        }
        }
    }

    impl fidl::encoding::Decode<Self> for FlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            0 => return Err(fidl::Error::UnknownUnionTag),
            _ => num_bytes as usize,
        };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 FlexibleUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::Primitive(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexibleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for NewerSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<NewerSimpleUnion> for &NewerSimpleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NewerSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            NewerSimpleUnion::I(ref val) => {
                fidl::encoding::encode_in_envelope::<i64>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            NewerSimpleUnion::S(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            NewerSimpleUnion::V(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            #[allow(deprecated)]
            NewerSimpleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
        }
        }
    }

    impl fidl::encoding::Decode<Self> for NewerSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            0 => return Err(fidl::Error::UnknownUnionTag),
            _ => num_bytes as usize,
        };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 NewerSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = NewerSimpleUnion::I(fidl::new_empty!(i64));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            NewerSimpleUnion::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::V(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = NewerSimpleUnion::V(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::V(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = NewerSimpleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for OlderSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<OlderSimpleUnion> for &OlderSimpleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<OlderSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                OlderSimpleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i64>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                OlderSimpleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                #[allow(deprecated)]
                OlderSimpleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for OlderSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 OlderSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = OlderSimpleUnion::I(fidl::new_empty!(i64));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = OlderSimpleUnion::F(fidl::new_empty!(f32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = OlderSimpleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for OnlyReservedFlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<OnlyReservedFlexibleUnion> for &OnlyReservedFlexibleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<OnlyReservedFlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                #[allow(deprecated)]
                OnlyReservedFlexibleUnion::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for OnlyReservedFlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 {
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 {
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = OnlyReservedFlexibleUnion::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for PizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<PizzaOrPasta> for &PizzaOrPasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<PizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                PizzaOrPasta::Pizza(ref val) => fidl::encoding::encode_in_envelope::<Pizza>(
                    <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                PizzaOrPasta::Pasta(ref val) => fidl::encoding::encode_in_envelope::<Pasta>(
                    <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for PizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 PizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = PizzaOrPasta::Pizza(fidl::new_empty!(Pizza));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = PizzaOrPasta::Pasta(fidl::new_empty!(Pasta));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for ReverseOrdinalUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<ReverseOrdinalUnion> for &ReverseOrdinalUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ReverseOrdinalUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ReverseOrdinalUnion::First(ref val) => fidl::encoding::encode_in_envelope::<u32>(
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ReverseOrdinalUnion::Second(ref val) => fidl::encoding::encode_in_envelope::<u32>(
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for ReverseOrdinalUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::First(fidl::new_empty!(u32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 ReverseOrdinalUnion::First(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ReverseOrdinalUnion::First(fidl::new_empty!(u32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::First(ref mut val) = self {
                        fidl::decode!(u32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::Second(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ReverseOrdinalUnion::Second(fidl::new_empty!(u32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::Second(ref mut val) = self {
                        fidl::decode!(u32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StrictBoundedUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StrictBoundedUnion> for &StrictBoundedUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictBoundedUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictBoundedUnion::V(ref val) => {
                    fidl::encoding::encode_in_envelope::<fidl::encoding::Vector<u8, 10>>(
                        <fidl::encoding::Vector<u8, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                            val,
                        ),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl fidl::encoding::Decode<Self> for StrictBoundedUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::V(fidl::new_empty!(fidl::encoding::Vector<u8, 10>))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::Vector<u8, 10> as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 StrictBoundedUnion::V(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            StrictBoundedUnion::V(fidl::new_empty!(fidl::encoding::Vector<u8, 10>));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictBoundedUnion::V(ref mut val) = self {
                        fidl::decode!(fidl::encoding::Vector<u8, 10>, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StrictFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StrictFoo> for &StrictFoo {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for StrictFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::S(fidl::new_empty!(fidl::encoding::UnboundedString))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 StrictFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictFoo::I(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::I(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StrictPizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StrictPizzaOrPasta> for &StrictPizzaOrPasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictPizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictPizzaOrPasta::Pizza(ref val) => fidl::encoding::encode_in_envelope::<Pizza>(
                    <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictPizzaOrPasta::Pasta(ref val) => fidl::encoding::encode_in_envelope::<Pasta>(
                    <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for StrictPizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 StrictPizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictPizzaOrPasta::Pizza(fidl::new_empty!(Pizza));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictPizzaOrPasta::Pasta(fidl::new_empty!(Pasta));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StrictSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StrictSimpleUnion> for &StrictSimpleUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictSimpleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictSimpleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictSimpleUnion::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for StrictSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::I(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 StrictSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictSimpleUnion::I(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictSimpleUnion::F(fidl::new_empty!(f32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            StrictSimpleUnion::S(fidl::new_empty!(fidl::encoding::UnboundedString));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for StrictUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<StrictUnion> for &StrictUnion {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            StrictUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            StrictUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            StrictUnion::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl fidl::encoding::Decode<Self> for StrictUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            _ => return Err(fidl::Error::UnknownUnionTag),
        };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 StrictUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::Primitive(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for Union {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<Union> for &Union {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Union>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            Union::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            Union::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            Union::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl fidl::encoding::Decode<Self> for Union {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            _ => return Err(fidl::Error::UnknownUnionTag),
        };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 Union::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::Primitive(fidl::new_empty!(i32));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::Primitive(ref mut val) = self {
                        fidl::decode!(i32, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Union::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Union::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for UnionContainingEmptyStruct {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<UnionContainingEmptyStruct> for &UnionContainingEmptyStruct {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionContainingEmptyStruct>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                UnionContainingEmptyStruct::Empty(ref val) => {
                    fidl::encoding::encode_in_envelope::<Empty>(
                        <Empty as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                #[allow(deprecated)]
                UnionContainingEmptyStruct::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for UnionContainingEmptyStruct {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <Empty as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 UnionContainingEmptyStruct::Empty(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = UnionContainingEmptyStruct::Empty(fidl::new_empty!(Empty));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let UnionContainingEmptyStruct::Empty(ref mut val) = self {
                        fidl::decode!(Empty, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = UnionContainingEmptyStruct::__Unknown { 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(())
        }
    }

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

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

        #[inline(always)]
        fn inline_size(context: fidl::encoding::Context) -> usize {
            match context.wire_format_version {
                fidl::encoding::WireFormatVersion::V1 => 24,
                fidl::encoding::WireFormatVersion::V2 => 16,
            }
        }
    }
    impl fidl::encoding::ValueTypeMarker for UnionWithAttributes {
        type Borrowed<'a> = &'a Self;
        fn borrow<'a>(
            value: &'a <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::Encode<UnionWithAttributes> for &UnionWithAttributes {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionWithAttributes>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                UnionWithAttributes::X(ref val) => fidl::encoding::encode_in_envelope::<i64>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                #[allow(deprecated)]
                UnionWithAttributes::__Unknown { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl fidl::encoding::Decode<Self> for UnionWithAttributes {
        #[inline(always)]
        fn new_empty() -> Self {
            #[allow(deprecated)]
            Self::__Unknown { ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_>,
            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 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if let fidl::encoding::WireFormatVersion::V2 = decoder.context.wire_format_version {
                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 UnionWithAttributes::X(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = UnionWithAttributes::X(fidl::new_empty!(i64));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let UnionWithAttributes::X(ref mut val) = self {
                        fidl::decode!(i64, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = UnionWithAttributes::__Unknown { 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(())
        }
    }
}