return wc.internalPred.Empty()
}

// transform transforms an event into a result for user if not filtered.
func (wc *watchChan) transform(e *event) (res *watch.Event) {
	curObj, oldObj, err := wc.prepareObjs(e)
	if err != nil {
		klog.Errorf("failed to prepare current and previous objects: %v", err)
		wc.sendError(err)
		return nil
	}

	switch {
	case e.isProgressNotify:
		object := wc.watcher.newFunc()