HConsed.HCtype key = Base.ttype t = BatHashcons.MakeTable(Base).tval create : int -> tval clear : t -> unitval hashcons : t -> key -> key BatHashcons.hobjval iter : (key BatHashcons.hobj -> unit) -> t -> unitval fold : (key BatHashcons.hobj -> 'a -> 'a) -> t -> 'a -> 'aval count : t -> int