type buf = Stdlib.Bytes.t Ctypes.ocamlval size_uint32 : bytes -> Unsigned.uint32val ctypes_buf : bytes -> bufval ctypes_buf_with_offset : bytes -> int -> bufval equal : bytes -> bytes -> boolval disjoint : bytes -> bytes -> boolval sub : bytes -> int -> int -> bytesval copy : bytes -> bytesval z_compare : bytes -> Z.t -> int