include module type of Stdlib.StringLabels
val make : int -> char -> stringval length : string -> intval get : string -> int -> charval of_bytes : bytes -> stringval to_bytes : string -> bytesval blit : 
  src:string ->
  src_pos:int ->
  dst:bytes ->
  dst_pos:int ->
  len:int ->
  unitval concat : sep:string -> string list -> stringval cat : string -> string -> stringval equal : t -> t -> boolval compare : t -> t -> intval starts_with : prefix:string -> string -> boolval ends_with : suffix:string -> string -> boolval contains_from : string -> int -> char -> boolval rcontains_from : string -> int -> char -> boolval contains : string -> char -> boolval sub : string -> pos:int -> len:int -> stringval split_on_char : sep:char -> string -> string listval map : f:(char -> char) -> string -> stringval mapi : f:(int -> char -> char) -> string -> stringval fold_left : f:('acc -> char -> 'acc) -> init:'acc -> string -> 'accval fold_right : f:(char -> 'acc -> 'acc) -> string -> init:'acc -> 'accval for_all : f:(char -> bool) -> string -> boolval exists : f:(char -> bool) -> string -> boolval trim : string -> stringval escaped : string -> stringval uppercase_ascii : string -> stringval lowercase_ascii : string -> stringval capitalize_ascii : string -> stringval uncapitalize_ascii : string -> stringval iter : f:(char -> unit) -> string -> unitval iteri : f:(int -> char -> unit) -> string -> unitval index_from : string -> int -> char -> intval index_from_opt : string -> int -> char -> int optionval rindex_from : string -> int -> char -> intval rindex_from_opt : string -> int -> char -> int optionval index : string -> char -> intval index_opt : string -> char -> int optionval rindex : string -> char -> intval rindex_opt : string -> char -> int optionval to_seq : t -> char Stdlib.Seq.tval to_seqi : t -> (int * char) Stdlib.Seq.tval of_seq : char Stdlib.Seq.t -> tval get_utf_8_uchar : t -> int -> Stdlib.Uchar.utf_decodeval is_valid_utf_8 : t -> boolval get_utf_16be_uchar : t -> int -> Stdlib.Uchar.utf_decodeval is_valid_utf_16be : t -> boolval get_utf_16le_uchar : t -> int -> Stdlib.Uchar.utf_decodeval is_valid_utf_16le : t -> boolval get_uint8 : string -> int -> intval get_int8 : string -> int -> intval get_uint16_ne : string -> int -> intval get_uint16_be : string -> int -> intval get_uint16_le : string -> int -> intval get_int16_ne : string -> int -> intval get_int16_be : string -> int -> intval get_int16_le : string -> int -> intval get_int32_ne : string -> int -> int32val seeded_hash : int -> t -> intval get_int32_be : string -> int -> int32val get_int32_le : string -> int -> int32val get_int64_ne : string -> int -> int64val get_int64_be : string -> int -> int64val get_int64_le : string -> int -> int64val unsafe_get : string -> int -> charval unsafe_blit : 
  src:string ->
  src_pos:int ->
  dst:bytes ->
  dst_pos:int ->
  len:int ->
  unitval sexp_of_t : t -> Sexplib0.Sexp.tval to_string : string -> stringval chop_prefix : string -> prefix:string -> string optionval chop_suffix : string -> suffix:string -> string optionval init : int -> f:(int -> char) -> stringval is_empty : string -> boolval lsplit2 : string -> on:char -> (string * string) optionval rsplit2 : string -> on:char -> (string * string) optionval split_lines : string -> string listval split : string -> on:char -> string listval strip : string -> stringval uncapitalize : string -> string