/services/ad_service.proto

--- v9/services/ad_service.proto    2022-06-06 16:14:05.000000000 +0000
+++ v10/services/ad_service.proto   2022-06-06 16:14:09.000000000 +0000
@@ -176,7 +176,9 @@
 // The result for the ad mutate.
 message MutateAdResult {
   // The resource name returned for successful operations.
-  string resource_name = 1;
+  string resource_name = 1 [(google.api.resource_reference) = {
+                              type: "googleads.googleapis.com/Ad"
+                            }];

   // The mutated ad with only mutable fields after mutate. The field will only
   // be returned when response_content_type is set to "MUTABLE_RESOURCE".