if se == nil {
		return nil
	}

	switch event {
	case model.EventAdd, model.EventDelete:
		ec.updateXDS(se)
	default:
		// Don't care about updates.
	}
	return nil
}

func (ec *serviceExportCacheImpl) updateXDS(se metav1.Object) {
	for _, svc := range ec.servicesForNamespacedName(config.NamespacedName(se)) {