let caml_create_bytes: int => bytes;let caml_fill_bytes: bytes => int => int => char => unit;let get: bytes => int => char;let set: bytes => int => char => unit;let bytes_to_string: bytes => string;let caml_blit_bytes: bytes => int => bytes => int => int => unit;let caml_blit_string: string => int => bytes => int => int => unit;let bytes_of_string: string => bytes;let caml_bytes_compare: bytes => bytes => int;let caml_bytes_greaterthan: bytes => bytes => bool;let caml_bytes_greaterequal: bytes => bytes => bool;let caml_bytes_lessthan: bytes => bytes => bool;let caml_bytes_lessequal: bytes => bytes => bool;let caml_bytes_equal: bytes => bytes => bool;