Module Datatype.S_with_collections.Hashtbl

module Hashtbl: Datatype.Hashtbl  with type key = t

include Datatype.Hashtbl_with_descr
val make_type : 'a Type.t -> 'a Datatype.t Type.t
module Key: Datatype.S  with type t = key

Datatype for the keys of the hashtbl.

module Make: 
functor (Data : Datatype.S-> Datatype.S with type t = Data.t t

Build a datatype of the hashtbl according to the datatype of values in the hashtbl.