func GetCurrentResourceVersionFromStorage(ctx context.Context, storage Interface, newListFunc func() runtime.Object, resourcePrefix, objectType string) (uint64, error) {
	if storage == nil {
		return 0, fmt.Errorf("storage wasn't provided for %s", objectType)
	}
	if newListFunc == nil {
		return 0, fmt.Errorf("newListFunction wasn't provided for %s", objectType)
	}
	emptyList := newListFunc()
	pred := SelectionPredicate{
		Label: labels.Everything(),

	newFunc := func() runtime.Object { return &corev1.Endpoints{} }
	newListFunc := func() runtime.Object { return &corev1.EndpointsList{} }
	sc.Codec = apitesting.TestStorageCodec(codecs, corev1.SchemeGroupVersion)

	s, dFunc, err := factory.Create(*sc.ForResource(schema.GroupResource{Resource: "endpoints"}), newFunc, newListFunc, "")
	if err != nil {
		t.Fatalf("Error creating storage: %v", err)
	}
	t.Cleanup(dFunc)

	versioner storage.Versioner

	// newFunc is a function that creates new empty object storing a object of type Type.
	newFunc func() runtime.Object

	// newListFunc is a function that creates new empty list for storing objects of type Type.
	newListFunc func() runtime.Object

	// indexedTrigger is used for optimizing amount of watchers that needs to process
	// an incoming event.
	indexedTrigger *indexedTriggerFunc

// New returns an etcd3 implementation of storage.Interface.
func New(c *clientv3.Client, codec runtime.Codec, newFunc, newListFunc func() runtime.Object, prefix, resourcePrefix string, groupResource schema.GroupResource, transformer value.Transformer, leaseManagerConfig LeaseManagerConfig) storage.Interface {
	return newStore(c, codec, newFunc, newListFunc, prefix, resourcePrefix, groupResource, transformer, leaseManagerConfig)
}

	return atomic.SwapUint64(&r.reads, 0)
}

type setupOptions struct {
	client         func(testing.TB) *clientv3.Client
	codec          runtime.Codec
	newFunc        func() runtime.Object
	newListFunc    func() runtime.Object
	prefix         string
	resourcePrefix string
	groupResource  schema.GroupResource
	transformer    value.Transformer
	leaseConfig    LeaseManagerConfig

	recorderEnabled bool
}

		if compactor.refs == 0 {
			compactor.cancel()
			compactor.client.Close()
			delete(compactors, key)
		}
	}, nil
}

func newETCD3Storage(c storagebackend.ConfigForResource, newFunc, newListFunc func() runtime.Object, resourcePrefix string) (storage.Interface, DestroyFunc, error) {
	stopCompactor, err := startCompactorOnce(c.Transport, c.CompactionInterval)
	if err != nil {
		return nil, nil, err
	}

		GroupResource:  schema.GroupResource{Resource: "pods"},
		ResourcePrefix: setupOpts.resourcePrefix,
		KeyFunc:        setupOpts.keyFunc,
		GetAttrsFunc:   GetPodAttrs,
		NewFunc:        newPod,
		NewListFunc:    newPodList,
		IndexerFuncs:   setupOpts.indexerFuncs,
		Codec:          codecs.LegacyCodec(examplev1.SchemeGroupVersion),
		Clock:          setupOpts.clock,
	}
	cacher, err := NewCacherFromConfig(config)

	newFunc := func() runtime.Object { return &example.Pod{} }
	newListFunc := func() runtime.Object { return &example.PodList{} }

	sc.Codec = apitesting.TestStorageCodec(codecs, examplev1.SchemeGroupVersion)
	s, dFunc, err := factory.Create(*sc.ForResource(schema.GroupResource{Resource: "pods"}), newFunc, newListFunc, "/pods")
	if err != nil {
		t.Fatalf("Error creating storage: %v", err)
	}

	pods PodStorage,
	proxyTransport http.RoundTripper) (*REST, *StatusREST, *svcreg.ProxyREST, error) {

	store := &genericregistry.Store{
		NewFunc:                   func() runtime.Object { return &api.Service{} },
		NewListFunc:               func() runtime.Object { return &api.ServiceList{} },
		PredicateFunc:             svcreg.Matcher,
		DefaultQualifiedResource:  api.Resource("services"),
		SingularQualifiedResource: api.Resource("service"),

			if err != nil {
				return nil, nil, err
			}
			fieldsSet["spec.nodeName"] = pod.Spec.NodeName
			return labelsSet, fieldsSet, nil
		},
		NewFunc:     func() runtime.Object { return &example.Pod{} },
		NewListFunc: func() runtime.Object { return &example.PodList{} },
		Codec:       codecs.LegacyCodec(examplev1.SchemeGroupVersion),
		Clock:       clock.RealClock{},
	}
	cacher, err := NewCacherFromConfig(config)