case EventUpdateExtension:
        if v.OldExtension != nil {
            return &WatchMessage_Event{Action: WatchActionKindUpdate, Object: &Object{Object: &Object_Extension{Extension: v.Extension}}, OldObject: &Object{Object: &Object_Extension{Extension: v.OldExtension}}}
        } else {
            return &WatchMessage_Event{Action: WatchActionKindUpdate, Object: &Object{Object: &Object_Extension{Extension: v.Extension}}}