pub fn close(file: FsFile) -> Nil

pub fn is_terminal(file: FsFile) -> Bool

pub fn lock_sync(file: FsFile, exclusive: Bool) -> FsFile

pub fn read_sync(
  file: FsFile,
  p: uint8_array.Uint8Array,
) -> Result(bytes_read.BytesRead, error.Error)

pub fn readable(
  file: FsFile,
) -> readable_stream.ReadableStream(uint8_array.Uint8Array)

pub fn seek_sync(
  file: FsFile,
  offset: Int,
  whence: seek_mode.SeekMode,
) -> Int

pub fn set_raw(
  file: FsFile,
  mode: Bool,
  options: List(set_raw.SetRawOption),
) -> FsFile

pub fn stat_sync(
  file: FsFile,
) -> Result(file_info.FileInfo, error.Error)

pub fn sync_data_sync(file: FsFile) -> FsFile

pub fn sync_sync(file: FsFile) -> FsFile

pub fn truncate_sync(file: FsFile) -> FsFile

pub fn truncate_to_length_sync(file: FsFile, len: Int) -> FsFile

pub fn unlock_sync(file: FsFile) -> FsFile

pub fn using(
  file_result: Result(FsFile, error.Error),
  fun: fn(FsFile) -> Result(a, error.Error),
) -> Result(a, error.Error)

pub fn utime_sync(file: FsFile, atime: Int, mtime: Int) -> FsFile

pub fn writable(
  file: FsFile,
) -> writable_stream.WritableStream(uint8_array.Uint8Array)

pub fn write_sync(
  file: FsFile,
  p: uint8_array.Uint8Array,
) -> Result(Int, error.Error)