Make.1-Tval hash_fold_t : Base.Hash.state -> t -> Base.Hash.stateval hash : t -> Base.Hash.hash_valueinclude Hashtbl.Key with type t := tinclude Ppx_sexp_conv_lib.Sexpable.S with type t := tval t_of_sexp : Sexplib0.Sexp.t -> tval sexp_of_t : t -> Sexplib0.Sexp.tinclude Hashtbl_intf.Key_plain with type t := tval sexp_of_t : t -> Base.Sexp.tval hash : t -> intTwo ts that compare equal must have equal hashes for the hashtable to behave properly.