`sig type t val empty : CamomileLibrary.USet.t val is_empty : CamomileLibrary.USet.t -> bool val mem : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> bool val add : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val add_range : CamomileLibrary.UChar.t -> CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val singleton : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t val remove : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val remove_range : CamomileLibrary.UChar.t -> CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val union : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val inter : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val diff : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val compl : CamomileLibrary.USet.t -> CamomileLibrary.USet.t val compare : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> int val equal : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> bool val subset : CamomileLibrary.USet.t -> CamomileLibrary.USet.t -> bool val from : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val after : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val until : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val before : CamomileLibrary.UChar.t -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val iter : (CamomileLibrary.UChar.t -> unit) -> CamomileLibrary.USet.t -> unit val iter_range : (CamomileLibrary.UChar.t -> CamomileLibrary.UChar.t -> unit) -> CamomileLibrary.USet.t -> unit val fold : (CamomileLibrary.UChar.t -> 'a -> 'a) -> CamomileLibrary.USet.t -> 'a -> 'a val fold_range : (CamomileLibrary.UChar.t -> CamomileLibrary.UChar.t -> 'a -> 'a) -> CamomileLibrary.USet.t -> 'a -> 'a val for_all : (CamomileLibrary.UChar.t -> bool) -> CamomileLibrary.USet.t -> bool val exists : (CamomileLibrary.UChar.t -> bool) -> CamomileLibrary.USet.t -> bool val filter : (CamomileLibrary.UChar.t -> bool) -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t val partition : (CamomileLibrary.UChar.t -> bool) -> CamomileLibrary.USet.t -> CamomileLibrary.USet.t * CamomileLibrary.USet.t val cardinal : CamomileLibrary.USet.t -> int val elements : CamomileLibrary.USet.t -> CamomileLibrary.UChar.t list val ranges : CamomileLibrary.USet.t -> (CamomileLibrary.UChar.t * CamomileLibrary.UChar.t) list val min_elt : CamomileLibrary.USet.t -> CamomileLibrary.UChar.t val max_elt : CamomileLibrary.USet.t -> CamomileLibrary.UChar.t val choose : CamomileLibrary.USet.t -> CamomileLibrary.UChar.t val uset_of_iset : ISet.t -> CamomileLibrary.USet.t val iset_of_uset : CamomileLibrary.USet.t -> ISet.t end`