/resources/ad_group_ad_asset_view.proto

--- v14/resources/ad_group_ad_asset_view.proto  2023-10-19 02:11:05.000000000 +0000
+++ v15/resources/ad_group_ad_asset_view.proto  2023-10-19 02:11:09.000000000 +0000
@@ -93,8 +94,12 @@
       performance_label = 4 [(google.api.field_behavior) = OUTPUT_ONLY];

   // Output only. Pinned field.
-  google.ads.googleads.v14.enums.ServedAssetFieldTypeEnum.ServedAssetFieldType
+  google.ads.googleads.v15.enums.ServedAssetFieldTypeEnum.ServedAssetFieldType
       pinned_field = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. Source of the ad group ad asset.
+  google.ads.googleads.v15.enums.AssetSourceEnum.AssetSource source = 12
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 }

 // Contains policy information for an ad group ad asset.