fidl_fuchsia_storage_block__common/

fidl_fuchsia_storage_block__common.rs

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

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

use bitflags::bitflags;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

/// Indicates that the partition should be created as inactive, implying that it
/// will be destroyed on reboot (unless activated by a call to "Activate").
pub const ALLOCATE_PARTITION_FLAG_INACTIVE: u32 = 1;

pub const GUID_LENGTH: u32 = 16;

/// The maximum amount of data that can be decompressed in a single group of decompression
/// operations.
pub const MAX_DECOMPRESSED_BYTES: u64 = 134217728;

/// An arbitrary cap on the number of slices which may be requested when querying
/// for allocation information from a volume.
pub const MAX_SLICE_REQUESTS: u32 = 16;

/// The maximum value for a transfer size, identifying that there
/// effectively exists no maximum for a single operation.
pub const MAX_TRANSFER_UNBOUNDED: u32 = 4294967295;

pub const NAME_LENGTH: u32 = 128;

/// Value reserved for "invalid" VmoId. Will never be allocated by the server,
/// and may be utilized as a local value for an unallocated ID.
pub const VMOID_INVALID: u16 = 0;

bitflags! {
    /// Flags which may be attached to FIFO requests.
    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
    pub struct BlockIoFlag: u32 {
        /// Associate the following request with `group`.
        const GROUP_ITEM = 1;
        /// Only respond after this request (and all previous within group) have
        /// completed. Only valid with `GROUP_ITEM`.
        const GROUP_LAST = 2;
        /// Mark this operation as "Force Unit Access" (FUA), indicating that
        /// it should not complete until the data is written to the non-volatile
        /// medium (write), and that reads should bypass any on-device caches.
        const FORCE_ACCESS = 4;
        /// Attaches a pre-barrier to a request.  This will ensure that no request which was
        /// executed before this request will be re-ordered to execute after this request.
        ///
        /// NOTE: Barriers do NOT guarantee ordering of in-flight requests.  Any request which the
        /// client has not yet received a response for is considered in-flight, and no guarantees
        /// are made about relative ordering with this request.  This has important implications for
        /// grouped requests:  A request in the middle of a group with PRE_BARRIER set will NOT have
        /// ordering guarantees relative to the other requests in the same group.
        const PRE_BARRIER = 8;
        /// If set, the request is to be decompressed.
        const DECOMPRESS_WITH_ZSTD = 16;
        /// Use the `slot` and `dun` inline encryption (write) or decryption (read) parameters.
        /// Can only be used if the underlying hardware supports inline encryption.
        const INLINE_ENCRYPTION_ENABLED = 32;
    }
}

impl BlockIoFlag {}

bitflags! {
    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
    pub struct DeviceFlag: u32 {
        /// All writes to the block device will fail.
        const READONLY = 1;
        /// The block device may be removed from the device during operation.
        const REMOVABLE = 2;
        /// The device provides trim support.
        const TRIM_SUPPORT = 8;
        /// The device provides Force Unit Access (FUA) support.
        ///
        /// If this bit is unset, and a request is sent with the FORCE_ACCESS option set, the device
        /// will simulate a FUA by executing a device flush after the request completes (but before
        /// responding to the client).  Clients are strongly encouraged to probe for FUA support and
        /// avoid usage of FORCE_ACCESS without device support, since this is expensive.
        const FUA_SUPPORT = 16;
        /// The device provides zstd decompression support.
        const ZSTD_DECOMPRESSION_SUPPORT = 32;
        /// The device provides Barrier support.
        ///
        /// If this bit is unset, and a request is sent with the PRE_BARRIER option set, the device
        /// will simulate a barrier by executing a device flush before the request is submitted.
        /// Clients are strongly encouraged to probe for barrier support and avoid usage of
        /// PRE_BARRIER without device support, since this is expensive.
        const BARRIER_SUPPORT = 64;
    }
}

impl DeviceFlag {}

/// The opcode used in FIFO requests.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u8)]
pub enum BlockOpcode {
    /// Performs a regular data read or write from the device. The operation may
    /// be cached internally.
    Read = 1,
    Write = 2,
    /// Write any controller or device cached data to nonvolatile storage.
    Flush = 3,
    /// Instructs the device to invalidate a number of blocks, making them  usable
    /// for storing something else. This is basically a "delete" optimization,
    /// where the device is in charge of discarding the old content without
    /// clients having to write a given pattern. The operation may be cached
    /// internally.
    Trim = 4,
    /// Detaches the VMO from the block device.
    CloseVmo = 5,
}

impl BlockOpcode {
    #[inline]
    pub fn from_primitive(prim: u8) -> Option<Self> {
        match prim {
            1 => Some(Self::Read),
            2 => Some(Self::Write),
            3 => Some(Self::Flush),
            4 => Some(Self::Trim),
            5 => Some(Self::CloseVmo),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u8 {
        self as u8
    }
}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockDestroyResponse {
    pub status: i32,
}

impl fidl::Persistable for BlockDestroyResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockExtendRequest {
    pub start_slice: u64,
    pub slice_count: u64,
}

impl fidl::Persistable for BlockExtendRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockExtendResponse {
    pub status: i32,
}

impl fidl::Persistable for BlockExtendResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockGetInstanceGuidResponse {
    pub status: i32,
    pub guid: Option<Box<Guid>>,
}

impl fidl::Persistable for BlockGetInstanceGuidResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockGetNameResponse {
    pub status: i32,
    pub name: Option<String>,
}

impl fidl::Persistable for BlockGetNameResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockGetTypeGuidResponse {
    pub status: i32,
    pub guid: Option<Box<Guid>>,
}

impl fidl::Persistable for BlockGetTypeGuidResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockGetVolumeInfoResponse {
    pub status: i32,
    pub manager: Option<Box<VolumeManagerInfo>>,
    pub volume: Option<Box<VolumeInfo>>,
}

impl fidl::Persistable for BlockGetVolumeInfoResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockInfo {
    /// The number of blocks in this block device.
    pub block_count: u64,
    /// The size of a single block.
    pub block_size: u32,
    /// The maximum size, in bytes, of a transfer.
    /// Set to MAX_TRANSFER_UNBOUNDED if no such maximum exists.
    pub max_transfer_size: u32,
    /// Identifiers about the device.
    pub flags: DeviceFlag,
}

impl fidl::Persistable for BlockInfo {}

/// Describes a re-mapping of a block range.  See OffsetMap.
/// Note that all fields are in *blocks*, not bytes.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockOffsetMapping {
    pub source_block_offset: u64,
    pub target_block_offset: u64,
    pub length: u64,
}

impl fidl::Persistable for BlockOffsetMapping {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockQuerySlicesRequest {
    pub start_slices: Vec<u64>,
}

impl fidl::Persistable for BlockQuerySlicesRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockQuerySlicesResponse {
    pub status: i32,
    pub response: [VsliceRange; 16],
    pub response_count: u64,
}

impl fidl::Persistable for BlockQuerySlicesResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockShrinkRequest {
    pub start_slice: u64,
    pub slice_count: u64,
}

impl fidl::Persistable for BlockShrinkRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct BlockShrinkResponse {
    pub status: i32,
}

impl fidl::Persistable for BlockShrinkResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct BlockGetInfoResponse {
    pub info: BlockInfo,
}

impl fidl::Persistable for BlockGetInfoResponse {}

/// A Globally Unique IDentifier, which may be utilized to identify
/// a partition.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct Guid {
    pub value: [u8; 16],
}

impl fidl::Persistable for Guid {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct SessionAttachVmoResponse {
    pub vmoid: VmoId,
}

impl fidl::Persistable for SessionAttachVmoResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VmoId {
    pub id: u16,
}

impl fidl::Persistable for VmoId {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeInfo {
    /// Number of slices allocated to the volume.
    pub partition_slice_count: u64,
    /// Limit on the maximum slices assigned to this partition, if there is one. If the size of the
    /// partition is not limited, this value will be 0. Partitions can grow into free slices
    /// available in the volume manager as long as their slices are less than or equal to this
    /// value.
    ///
    /// The partition may be larger than this limit if a smaller limit was applied after the
    /// partition had already grown to the current size.
    ///
    /// See `VolumeManager.GetPartitionLimit()`
    pub slice_limit: u64,
}

impl fidl::Persistable for VolumeInfo {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerActivateRequest {
    pub old_guid: Guid,
    pub new_guid: Guid,
}

impl fidl::Persistable for VolumeManagerActivateRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerActivateResponse {
    pub status: i32,
}

impl fidl::Persistable for VolumeManagerActivateResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct VolumeManagerAllocatePartitionRequest {
    pub slice_count: u64,
    pub type_: Guid,
    pub instance: Guid,
    pub name: String,
    pub flags: u32,
}

impl fidl::Persistable for VolumeManagerAllocatePartitionRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerAllocatePartitionResponse {
    pub status: i32,
}

impl fidl::Persistable for VolumeManagerAllocatePartitionResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct VolumeManagerGetInfoResponse {
    pub status: i32,
    pub info: Option<Box<VolumeManagerInfo>>,
}

impl fidl::Persistable for VolumeManagerGetInfoResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerGetPartitionLimitRequest {
    pub guid: Guid,
}

impl fidl::Persistable for VolumeManagerGetPartitionLimitRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerGetPartitionLimitResponse {
    pub status: i32,
    pub slice_count: u64,
}

impl fidl::Persistable for VolumeManagerGetPartitionLimitResponse {}

/// VolumeManagerInfo describes the properties of the volume manager and not each individual volume.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerInfo {
    /// Size of a single slice, in bytes.
    pub slice_size: u64,
    /// Number of slices the volume manager is able use right now. This counts the
    /// allocated_slice_count plus the number of available slices.
    pub slice_count: u64,
    /// Number of slices currently assigned to partitions.
    pub assigned_slice_count: u64,
    /// The maximum capacity which the Volume Manager could grow to utilize if the partition
    /// containing the Volume Manager itself expands (i.e., the Volume Manager is initialized on a
    /// GPT partition that has extended beyond the originally allocated capacity). This value is
    /// the number of entries reserved in the volume manager header and is not related to the size
    /// of the physical device (which may be larger or smaller).
    pub maximum_slice_count: u64,
    /// Largest value that can be used for a virtual slice number.
    pub max_virtual_slice: u64,
}

impl fidl::Persistable for VolumeManagerInfo {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerSetPartitionLimitRequest {
    pub guid: Guid,
    pub slice_count: u64,
}

impl fidl::Persistable for VolumeManagerSetPartitionLimitRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct VolumeManagerSetPartitionLimitResponse {
    pub status: i32,
}

impl fidl::Persistable for VolumeManagerSetPartitionLimitResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct VolumeManagerSetPartitionNameRequest {
    pub guid: Guid,
    pub name: String,
}

impl fidl::Persistable for VolumeManagerSetPartitionNameRequest {}

/// VsliceRange describes a range of virtual slices: start, length, and allocated status.
///
/// These ranges are returned in an ordered container, which implicitly describes the
/// starting offset, starting from the "index zero" slice.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct VsliceRange {
    /// True if the virtual slices are allocated, false otherwise.
    pub allocated: bool,
    /// The number of contiguous virtual slices.
    pub count: u64,
}

impl fidl::Persistable for VsliceRange {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct BlockGetMetadataResponse {
    pub name: Option<String>,
    pub type_guid: Option<Guid>,
    pub instance_guid: Option<Guid>,
    /// start_block_offset will be absent if the partition is non-contiguous.
    pub start_block_offset: Option<u64>,
    /// num_blocks will be absent if the partition is a dynamic volume, in which case
    /// fuchsia.storage.block.Block/GetVolumeInfo should be called instead.
    pub num_blocks: Option<u64>,
    pub flags: Option<u64>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for BlockGetMetadataResponse {}

pub mod block_ordinals {
    pub const GET_INFO: u64 = 0x58777a4a31cc9a47;
    pub const OPEN_SESSION: u64 = 0x2ca32f8c64f1d6c8;
    pub const OPEN_SESSION_WITH_OFFSET_MAP: u64 = 0x4417dc2d57b4b574;
    pub const GET_TYPE_GUID: u64 = 0xefe4e41dafce4cc;
    pub const GET_INSTANCE_GUID: u64 = 0x2e85011aabeb87fb;
    pub const GET_NAME: u64 = 0x630be18badedbb05;
    pub const GET_METADATA: u64 = 0x2c76b02ef9382533;
    pub const QUERY_SLICES: u64 = 0x289240ac4fbaa190;
    pub const GET_VOLUME_INFO: u64 = 0x3a7dc69ea5d788d4;
    pub const EXTEND: u64 = 0x273fb2980ff24157;
    pub const SHRINK: u64 = 0x73da6de865600a8b;
    pub const DESTROY: u64 = 0x5866ba764e05a68e;
}

pub mod session_ordinals {
    pub const CLOSE: u64 = 0x5ac5d459ad7f657e;
    pub const GET_FIFO: u64 = 0x7a6c7610912aaa98;
    pub const ATTACH_VMO: u64 = 0x677a0f6fd1a370b2;
}

pub mod volume_manager_ordinals {
    pub const ALLOCATE_PARTITION: u64 = 0x5db528bfc287b696;
    pub const GET_INFO: u64 = 0x2611214dcca5b064;
    pub const ACTIVATE: u64 = 0x182238d40c275be;
    pub const GET_PARTITION_LIMIT: u64 = 0x5bc9d21ea8bd52db;
    pub const SET_PARTITION_LIMIT: u64 = 0x3a4903076534c093;
    pub const SET_PARTITION_NAME: u64 = 0x26afb07b9d70ff1a;
}

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

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

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

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);
            *self = Self::from_bits(prim).ok_or(fidl::Error::InvalidBitsValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for DeviceFlag {
        type Owned = Self;

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

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

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);
            *self = Self::from_bits(prim).ok_or(fidl::Error::InvalidBitsValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for BlockOpcode {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u8>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u8>()
        }

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

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

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u8>(offset);

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

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockDestroyResponse, D>
        for &BlockDestroyResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockDestroyResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut BlockDestroyResponse)
                    .write_unaligned((self as *const BlockDestroyResponse).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<BlockDestroyResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockDestroyResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockDestroyResponse {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

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

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

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockExtendRequest {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { start_slice: fidl::new_empty!(u64, D), slice_count: fidl::new_empty!(u64, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockExtendResponse, D>
        for &BlockExtendResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockExtendResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut BlockExtendResponse)
                    .write_unaligned((self as *const BlockExtendResponse).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<BlockExtendResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockExtendResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockExtendResponse {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<BlockGetInstanceGuidResponse, D> for &BlockGetInstanceGuidResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetInstanceGuidResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockGetInstanceGuidResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Boxed<Guid> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.guid,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Boxed<Guid>, D>,
    > fidl::encoding::Encode<BlockGetInstanceGuidResponse, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetInstanceGuidResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for BlockGetInstanceGuidResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                guid: fidl::new_empty!(fidl::encoding::Boxed<Guid>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Boxed<Guid>,
                D,
                &mut self.guid,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockGetNameResponse, D>
        for &BlockGetNameResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetNameResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockGetNameResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Optional<fidl::encoding::BoundedString<128>> as fidl::encoding::ValueTypeMarker>::borrow(&self.name),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Optional<fidl::encoding::BoundedString<128>>, D>,
    > fidl::encoding::Encode<BlockGetNameResponse, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetNameResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockGetNameResponse {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                name: fidl::new_empty!(
                    fidl::encoding::Optional<fidl::encoding::BoundedString<128>>,
                    D
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Optional<fidl::encoding::BoundedString<128>>,
                D,
                &mut self.name,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<BlockGetTypeGuidResponse, D> for &BlockGetTypeGuidResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetTypeGuidResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockGetTypeGuidResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Boxed<Guid> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.guid,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Boxed<Guid>, D>,
    > fidl::encoding::Encode<BlockGetTypeGuidResponse, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetTypeGuidResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for BlockGetTypeGuidResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                guid: fidl::new_empty!(fidl::encoding::Boxed<Guid>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Boxed<Guid>,
                D,
                &mut self.guid,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<BlockGetVolumeInfoResponse, D> for &BlockGetVolumeInfoResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetVolumeInfoResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockGetVolumeInfoResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Boxed<VolumeManagerInfo> as fidl::encoding::ValueTypeMarker>::borrow(&self.manager),
                    <fidl::encoding::Boxed<VolumeInfo> as fidl::encoding::ValueTypeMarker>::borrow(&self.volume),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Boxed<VolumeManagerInfo>, D>,
        T2: fidl::encoding::Encode<fidl::encoding::Boxed<VolumeInfo>, D>,
    > fidl::encoding::Encode<BlockGetVolumeInfoResponse, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockGetVolumeInfoResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for BlockGetVolumeInfoResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                manager: fidl::new_empty!(fidl::encoding::Boxed<VolumeManagerInfo>, D),
                volume: fidl::new_empty!(fidl::encoding::Boxed<VolumeInfo>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Boxed<VolumeManagerInfo>,
                D,
                &mut self.manager,
                decoder,
                offset + 8,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Boxed<VolumeInfo>,
                D,
                &mut self.volume,
                decoder,
                offset + 16,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockInfo, D>
        for &BlockInfo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockInfo>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockInfo, D>::encode(
                (
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.block_count),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.block_size),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.max_transfer_size),
                    <DeviceFlag as fidl::encoding::ValueTypeMarker>::borrow(&self.flags),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u64, D>,
        T1: fidl::encoding::Encode<u32, D>,
        T2: fidl::encoding::Encode<u32, D>,
        T3: fidl::encoding::Encode<DeviceFlag, D>,
    > fidl::encoding::Encode<BlockInfo, D> for (T0, T1, T2, T3)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockInfo>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(16);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 12, depth)?;
            self.3.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockInfo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                block_count: fidl::new_empty!(u64, D),
                block_size: fidl::new_empty!(u32, D),
                max_transfer_size: fidl::new_empty!(u32, D),
                flags: fidl::new_empty!(DeviceFlag, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(16) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 16 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u64, D, &mut self.block_count, decoder, offset + 0, _depth)?;
            fidl::decode!(u32, D, &mut self.block_size, decoder, offset + 8, _depth)?;
            fidl::decode!(u32, D, &mut self.max_transfer_size, decoder, offset + 12, _depth)?;
            fidl::decode!(DeviceFlag, D, &mut self.flags, decoder, offset + 16, _depth)?;
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockOffsetMapping, D>
        for &BlockOffsetMapping
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockOffsetMapping>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut BlockOffsetMapping)
                    .write_unaligned((self as *const BlockOffsetMapping).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u64, D>,
        T1: fidl::encoding::Encode<u64, D>,
        T2: fidl::encoding::Encode<u64, D>,
    > fidl::encoding::Encode<BlockOffsetMapping, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockOffsetMapping>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockOffsetMapping {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                source_block_offset: fidl::new_empty!(u64, D),
                target_block_offset: fidl::new_empty!(u64, D),
                length: fidl::new_empty!(u64, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 24);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<BlockQuerySlicesRequest, D> for &BlockQuerySlicesRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockQuerySlicesRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockQuerySlicesRequest, D>::encode(
                (<fidl::encoding::Vector<u64, 16> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.start_slices,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Vector<u64, 16>, D>,
    > fidl::encoding::Encode<BlockQuerySlicesRequest, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockQuerySlicesRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for BlockQuerySlicesRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { start_slices: fidl::new_empty!(fidl::encoding::Vector<u64, 16>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<u64, 16>, D, &mut self.start_slices, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            272
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<BlockQuerySlicesResponse, D> for &BlockQuerySlicesResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockQuerySlicesResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<BlockQuerySlicesResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Array<VsliceRange, 16> as fidl::encoding::ValueTypeMarker>::borrow(&self.response),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.response_count),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Array<VsliceRange, 16>, D>,
        T2: fidl::encoding::Encode<u64, D>,
    > fidl::encoding::Encode<BlockQuerySlicesResponse, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockQuerySlicesResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 264, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for BlockQuerySlicesResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                response: fidl::new_empty!(fidl::encoding::Array<VsliceRange, 16>, D),
                response_count: fidl::new_empty!(u64, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(fidl::encoding::Array<VsliceRange, 16>, D, &mut self.response, decoder, offset + 8, _depth)?;
            fidl::decode!(u64, D, &mut self.response_count, decoder, offset + 264, _depth)?;
            Ok(())
        }
    }

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

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

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

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

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

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockShrinkRequest {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { start_slice: fidl::new_empty!(u64, D), slice_count: fidl::new_empty!(u64, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<BlockShrinkResponse, D>
        for &BlockShrinkResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockShrinkResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut BlockShrinkResponse)
                    .write_unaligned((self as *const BlockShrinkResponse).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<BlockShrinkResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<BlockShrinkResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for BlockShrinkResponse {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

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

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

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

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

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Guid, D> for &Guid {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Guid>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut Guid).write_unaligned((self as *const Guid).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Array<u8, 16>, D>,
    > fidl::encoding::Encode<Guid, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Guid>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Guid {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { value: fidl::new_empty!(fidl::encoding::Array<u8, 16>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            2
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            2
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 2);
            }
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            2
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            2
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<VmoId, D> for &VmoId {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VmoId>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VmoId).write_unaligned((self as *const VmoId).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<u16, D>>
        fidl::encoding::Encode<VmoId, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VmoId>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for VmoId {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { id: fidl::new_empty!(u16, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 2);
            }
            Ok(())
        }
    }

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

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

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

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

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

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for VolumeInfo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                partition_slice_count: fidl::new_empty!(u64, D),
                slice_limit: fidl::new_empty!(u64, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerActivateRequest, D> for &VolumeManagerActivateRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerActivateRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerActivateRequest)
                    .write_unaligned((self as *const VolumeManagerActivateRequest).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<Guid, D>,
        T1: fidl::encoding::Encode<Guid, D>,
    > fidl::encoding::Encode<VolumeManagerActivateRequest, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerActivateRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerActivateRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { old_guid: fidl::new_empty!(Guid, D), new_guid: fidl::new_empty!(Guid, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 32);
            }
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerActivateResponse, D>
        for &VolumeManagerActivateResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerActivateResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerActivateResponse)
                    .write_unaligned((self as *const VolumeManagerActivateResponse).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<VolumeManagerActivateResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerActivateResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerActivateResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            64
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerAllocatePartitionRequest, D>
        for &VolumeManagerAllocatePartitionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerAllocatePartitionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<VolumeManagerAllocatePartitionRequest, D>::encode(
                (
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.slice_count),
                    <Guid as fidl::encoding::ValueTypeMarker>::borrow(&self.type_),
                    <Guid as fidl::encoding::ValueTypeMarker>::borrow(&self.instance),
                    <fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.name,
                    ),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.flags),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u64, D>,
        T1: fidl::encoding::Encode<Guid, D>,
        T2: fidl::encoding::Encode<Guid, D>,
        T3: fidl::encoding::Encode<fidl::encoding::BoundedString<128>, D>,
        T4: fidl::encoding::Encode<u32, D>,
    > fidl::encoding::Encode<VolumeManagerAllocatePartitionRequest, D> for (T0, T1, T2, T3, T4)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerAllocatePartitionRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(56);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            self.3.encode(encoder, offset + 40, depth)?;
            self.4.encode(encoder, offset + 56, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerAllocatePartitionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                slice_count: fidl::new_empty!(u64, D),
                type_: fidl::new_empty!(Guid, D),
                instance: fidl::new_empty!(Guid, D),
                name: fidl::new_empty!(fidl::encoding::BoundedString<128>, D),
                flags: fidl::new_empty!(u32, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(56) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 56 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u64, D, &mut self.slice_count, decoder, offset + 0, _depth)?;
            fidl::decode!(Guid, D, &mut self.type_, decoder, offset + 8, _depth)?;
            fidl::decode!(Guid, D, &mut self.instance, decoder, offset + 24, _depth)?;
            fidl::decode!(
                fidl::encoding::BoundedString<128>,
                D,
                &mut self.name,
                decoder,
                offset + 40,
                _depth
            )?;
            fidl::decode!(u32, D, &mut self.flags, decoder, offset + 56, _depth)?;
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerAllocatePartitionResponse, D>
        for &VolumeManagerAllocatePartitionResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerAllocatePartitionResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerAllocatePartitionResponse).write_unaligned(
                    (self as *const VolumeManagerAllocatePartitionResponse).read(),
                );
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<VolumeManagerAllocatePartitionResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerAllocatePartitionResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerAllocatePartitionResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerGetInfoResponse, D> for &VolumeManagerGetInfoResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerGetInfoResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<VolumeManagerGetInfoResponse, D>::encode(
                (
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(&self.status),
                    <fidl::encoding::Boxed<VolumeManagerInfo> as fidl::encoding::ValueTypeMarker>::borrow(&self.info),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<fidl::encoding::Boxed<VolumeManagerInfo>, D>,
    > fidl::encoding::Encode<VolumeManagerGetInfoResponse, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerGetInfoResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerGetInfoResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                status: fidl::new_empty!(i32, D),
                info: fidl::new_empty!(fidl::encoding::Boxed<VolumeManagerInfo>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(i32, D, &mut self.status, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Boxed<VolumeManagerInfo>,
                D,
                &mut self.info,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

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

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 16);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerGetPartitionLimitResponse, D>
        for &VolumeManagerGetPartitionLimitResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerGetPartitionLimitResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerGetPartitionLimitResponse).write_unaligned(
                    (self as *const VolumeManagerGetPartitionLimitResponse).read(),
                );
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
                let padding_ptr = buf_ptr.offset(0) as *mut u64;
                let padding_mask = 0xffffffff00000000u64;
                padding_ptr.write_unaligned(padding_ptr.read_unaligned() & !padding_mask);
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<i32, D>,
        T1: fidl::encoding::Encode<u64, D>,
    > fidl::encoding::Encode<VolumeManagerGetPartitionLimitResponse, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerGetPartitionLimitResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerGetPartitionLimitResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D), slice_count: fidl::new_empty!(u64, D) }
        }

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

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<VolumeManagerInfo, D>
        for &VolumeManagerInfo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerInfo>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerInfo)
                    .write_unaligned((self as *const VolumeManagerInfo).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u64, D>,
        T1: fidl::encoding::Encode<u64, D>,
        T2: fidl::encoding::Encode<u64, D>,
        T3: fidl::encoding::Encode<u64, D>,
        T4: fidl::encoding::Encode<u64, D>,
    > fidl::encoding::Encode<VolumeManagerInfo, D> for (T0, T1, T2, T3, T4)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerInfo>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            self.3.encode(encoder, offset + 24, depth)?;
            self.4.encode(encoder, offset + 32, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for VolumeManagerInfo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                slice_size: fidl::new_empty!(u64, D),
                slice_count: fidl::new_empty!(u64, D),
                assigned_slice_count: fidl::new_empty!(u64, D),
                maximum_slice_count: fidl::new_empty!(u64, D),
                max_virtual_slice: fidl::new_empty!(u64, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 40);
            }
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerSetPartitionLimitRequest, D>
        for &VolumeManagerSetPartitionLimitRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionLimitRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerSetPartitionLimitRequest)
                    .write_unaligned((self as *const VolumeManagerSetPartitionLimitRequest).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<Guid, D>,
        T1: fidl::encoding::Encode<u64, D>,
    > fidl::encoding::Encode<VolumeManagerSetPartitionLimitRequest, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionLimitRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerSetPartitionLimitRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { guid: fidl::new_empty!(Guid, D), slice_count: fidl::new_empty!(u64, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 24);
            }
            Ok(())
        }
    }

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

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerSetPartitionLimitResponse, D>
        for &VolumeManagerSetPartitionLimitResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionLimitResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut VolumeManagerSetPartitionLimitResponse).write_unaligned(
                    (self as *const VolumeManagerSetPartitionLimitResponse).read(),
                );
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<i32, D>>
        fidl::encoding::Encode<VolumeManagerSetPartitionLimitResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionLimitResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerSetPartitionLimitResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(i32, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VolumeManagerSetPartitionNameRequest, D>
        for &VolumeManagerSetPartitionNameRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionNameRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<VolumeManagerSetPartitionNameRequest, D>::encode(
                (
                    <Guid as fidl::encoding::ValueTypeMarker>::borrow(&self.guid),
                    <fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.name,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<Guid, D>,
        T1: fidl::encoding::Encode<fidl::encoding::BoundedString<128>, D>,
    > fidl::encoding::Encode<VolumeManagerSetPartitionNameRequest, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VolumeManagerSetPartitionNameRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VolumeManagerSetPartitionNameRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                guid: fidl::new_empty!(Guid, D),
                name: fidl::new_empty!(fidl::encoding::BoundedString<128>, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(Guid, D, &mut self.guid, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::BoundedString<128>,
                D,
                &mut self.name,
                decoder,
                offset + 16,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

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

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

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffffffffff00u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(bool, D, &mut self.allocated, decoder, offset + 0, _depth)?;
            fidl::decode!(u64, D, &mut self.count, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

    impl BlockGetMetadataResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.flags {
                return 6;
            }
            if let Some(_) = self.num_blocks {
                return 5;
            }
            if let Some(_) = self.start_block_offset {
                return 4;
            }
            if let Some(_) = self.instance_guid {
                return 3;
            }
            if let Some(_) = self.type_guid {
                return 2;
            }
            if let Some(_) = self.name {
                return 1;
            }
            0
        }
    }

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

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

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

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

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

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

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

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<128>, D>(
                self.name.as_ref().map(
                    <fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

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

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

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

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

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

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

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

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

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

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.start_block_offset
                    .as_ref()
                    .map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

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

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.num_blocks.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 6 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (6 - 1) * envelope_size;

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

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u64, D>(
                self.flags.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

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

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

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

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<128> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .name
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<128>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<128>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

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

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

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

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

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

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

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

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.start_block_offset.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

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

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.num_blocks.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

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

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 6 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.flags.get_or_insert_with(|| fidl::new_empty!(u64, D));
                fidl::decode!(u64, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

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

            Ok(())
        }
    }
}