Module type Hash_set.Elt

module type Elt = Hashtbl.Key

type t

val sexp_of_t : t -> Sexplib.Sexp.t

val t_of_sexp : Sexplib.Sexp.t -> t

val compare : t -> t -> int

val hash : t -> int

Values returned by hash must be non-negative. An exception will be raised in the case that hash returns a negative value.