val find : ('a, 'b list) Stdlib.Hashtbl.t -> 'a -> 'b listval add : 'a -> 'b -> ('a, 'b list) Stdlib.Hashtbl.t -> unitDecompress_lz77.Tval find : ('a, 'b list) Stdlib.Hashtbl.t -> 'a -> 'b listval add : 'a -> 'b -> ('a, 'b list) Stdlib.Hashtbl.t -> unit