c.opts.XDSUpdater.ConfigUpdate(&model.PushRequest{
			Full:   true,
			Reason: model.NewReasonStats(model.ServiceUpdate),
		})
	}
	return nil
}

// FilterOutFunc func for filtering out objects during update callback
type FilterOutFunc[T controllers.Object] func(old, cur T) bool

// registerHandlers registers a handler for a given informer
// Note: `otype` is used for metric, if empty, no metric will be reported