Hash_set.Creators
module Elt : sig ... end
include Creators_generic with type 'a t := 'a t_ with type 'a elt := 'a Elt.t with type ('elt, 'z) create_options
:= ('elt, 'z) create_options_without_first_class_module
val create : ('a, unit -> 'a t_) create_options_without_first_class_module
val of_list : ('a, 'a Elt.t list -> 'a t_) create_options_without_first_class_module