Functor Hashable.Make

module Make: 
functor (T : Hashtbl.Key) -> sig .. end
Parameters:
T : Hashtbl.Key

include T
module Table: Hashtbl.Make(T)
module Hash_set: Hash_set.Make(T)
module Hash_queue: Hash_queue.Make(T)
val hashable : Table.key Core_hashtbl_intf.Hashable.t