IoWritable

:write(data: string | buffer): ()

:writeu8(value: number): ()

:writeu16(value: number): ()

:writeu32(value: number): ()

:writei8(value: number): ()

:writei16(value: number): ()

:writei32(value: number): ()

:writef32(value: number): ()

:writef64(value: number): ()