include Hashtbl.S with type key = Types.transient_expr
type key = Types.transient_expr
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
val mem : 'a t -> Types.type_expr -> bool
val add : 'a t -> Types.type_expr -> 'a -> unit
val remove : 'a t -> Types.type_expr -> unit
val find : 'a t -> Types.type_expr -> 'a
val find_opt : 'a t -> Types.type_expr -> 'a option
val iter : (Types.type_expr -> 'a -> unit) -> 'a t -> unit