`sig type uchar = CamomileLibrary.UChar.t val int_of_uchar : CamomileLibrary.UPervasives.uchar -> int val uchar_of_int : int -> CamomileLibrary.UPervasives.uchar val escaped_uchar : CamomileLibrary.UPervasives.uchar -> string val escaped_utf8 : string -> string val printer_utf8 : Format.formatter -> string -> unit val printer_uchar : Format.formatter -> CamomileLibrary.UPervasives.uchar -> unit end`