Bos_setup.Pattype t = Bos.Pat.tval v : string -> tval empty : tval dom : t -> Astring.String.Set.tval of_string : string -> (t, [> Rresult.R.msg ]) Rresult.resultval to_string : t -> stringval pp : Format.formatter -> t -> unitval dump : Format.formatter -> t -> unittype defs = string Astring.String.Map.tval matches : t -> string -> bool