module CS:Kwset.Make(Char)
include struct ... end
val map : (elt -> elt) -> t -> tmap f t: returns a new set that is the result of applying f to each element of t.val replace : elt -> elt -> t -> treplace a b t: returns a new set in which a is replaced with b.val of_list : elt list -> tlist : the listval to_list : t -> elt listto_list set: create a list from the items in a set.set : the set