Functor building an implementation of a weak hash table. The seed is similar to the one of Hashtbl.MakeSeeded.
include Stdlib.Hashtbl.SeededSval create : ?random:bool -> int -> 'a tval clear : 'a t -> unitval reset : 'a t -> unitval length : 'a t -> intval stats : 'a t -> Stdlib.Hashtbl.statisticsval stats_alive : 'a t -> Stdlib.Hashtbl.statisticssame as Hashtbl.SeededS.stats but only count the alive bindings