return controllers.EventHandler[I]{
		AddExtendedFunc: func(obj I, initialSync bool) {
			handler(Event[I]{
				New:   &obj,
				Event: controllers.EventAdd,
			}, initialSync)
		},
		UpdateFunc: func(oldObj, newObj I) {
			handler(Event[I]{
				Old:   &oldObj,
				New:   &newObj,
				Event: controllers.EventUpdate,
			}, false)
		},
		DeleteFunc: func(obj I) {
			handler(Event[I]{

			// So we need to notify if we started selecting namespace
			if f.namespaceCreatedLocked(ns.ObjectMeta) {
				f.notifyHandlersLocked(sets.New(ns.Name), nil)
			}
		},
		UpdateFunc: func(old, new *corev1.Namespace) {
			f.lock.Lock()
			defer f.lock.Unlock()
			membershipChanged, namespaceAdded := f.namespaceUpdatedLocked(old.ObjectMeta, new.ObjectMeta)
			if membershipChanged {