Elt : sig ... end
include Hash_set_intf.Creators with type a t := a t_ with type a elt := a Elt.t with type (elt, z) create_options := (elt, z) Hash_set_intf.create_options_without_hashable
val create : ('a, unit ‑> 'a t) create_options
val of_list : ('a, 'a elt list ‑> 'a t) create_options