type key = G.V.tval create : int -> 'a tval clear : 'a t -> unitval reset : 'a t -> unitval length : 'a t -> intval stats : 'a t -> Stdlib.Hashtbl.statisticsval to_seq : 'a t -> (key * 'a) Stdlib.Seq.tval to_seq_keys : 'a t -> key Stdlib.Seq.tval to_seq_values : 'a t -> 'a Stdlib.Seq.tval add_seq : 'a t -> (key * 'a) Stdlib.Seq.t -> unitval replace_seq : 'a t -> (key * 'a) Stdlib.Seq.t -> unitval of_seq : (key * 'a) Stdlib.Seq.t -> 'a t