FileReadStreaming

    pub const FileReadStreaming = struct {
        file: File,
        data: []const []u8,

        pub const Error = UnendingError || error{EndOfStream};
        pub const UnendingError = error{
            InputOutput,
            SystemResources,
            /// Trying to read a directory file descriptor as if it were a file.
            IsDir,
            ConnectionResetByPeer,
            /// File was not opened with read capability.
            NotOpenForReading,
            SocketUnconnected,
            /// Non-blocking has been enabled, and reading from the file descriptor
            /// would block.
            WouldBlock,
            /// In WASI, this error occurs when the file descriptor does
            /// not hold the required rights to read from it.
            AccessDenied,
            /// Unable to read file due to lock. Depending on the `Io` implementation,
            /// reading from a locked file may return this error, or may ignore the
            /// lock.
            LockViolation,
        } || Io.UnexpectedError;

        pub const Result = Error!usize;
    }