/enums/ad_type.proto

--- v15/enums/ad_type.proto 2024-02-20 20:28:59.000000000 +0000
+++ v16/enums/ad_type.proto 2024-02-20 20:29:02.000000000 +0000
@@ -132,5 +132,8 @@

     // Discovery video responsive ad.
     DISCOVERY_VIDEO_RESPONSIVE_AD = 38;
+
+    // Demand Gen product ad.
+    DEMAND_GEN_PRODUCT_AD = 39;
   }
 }