+
+(*
+val mutind_uri: uri -> int -> uri
+val mutconstruct_uri: uri -> int -> int -> uri
+val mutind: uri -> uri * int
+val mutconstruct: uri -> uri * int * int
+*)
+
+ (* builder for MutInd and MutConstruct URIs *)
+type uriref = uri * (int list)
+val string_of_uriref : uriref -> string
+
+module UriSet: Set.S with type elt = uri
+