runtime.NewBase64Serializer(nil, opts.StorageSerializer.UniversalDeserializer()),
	}
	if opts.DecoderDecoratorFn != nil {
		decoders = opts.DecoderDecoratorFn(decoders)
	}

	encodeVersioner := runtime.NewMultiGroupVersioner(
		opts.StorageVersion,
		schema.GroupKind{Group: opts.StorageVersion.Group},
		schema.GroupKind{Group: opts.MemoryVersion.Group},
	)

	// Ensure the storage receives the correct version.

	etcdOptions.StorageConfig.EncodeVersioner = runtime.NewMultiGroupVersioner(v1beta1.SchemeGroupVersion, schema.GroupKind{Group: v1beta1.GroupName})
	etcdOptions.SkipHealthEndpoints = true // avoid double wiring of health checks
	if err := etcdOptions.ApplyTo(&genericConfig); err != nil {

	acceptedGroupKinds []schema.GroupKind
	coerce             bool
}

// NewMultiGroupVersioner returns the provided group version for any kind that matches one of the provided group kinds.
// Kind may be empty in the provided group kind, in which case any kind will match.
func NewMultiGroupVersioner(gv schema.GroupVersion, groupKinds ...schema.GroupKind) GroupVersioner {

		{
			scheme: GetTestScheme(),
			in:     &runtimetesting.ExternalTestType1{A: "test"},
			gv:     runtime.NewMultiGroupVersioner(schema.GroupVersion{Group: "other", Version: "v2"}, schema.GroupKind{Group: "custom", Kind: "TestType3"}, schema.GroupKind{Kind: "TestType1"}),
			out: &runtimetesting.ExternalTestType1{

	etcdOptions := *commandOptions.Etcd
	etcdOptions.StorageConfig.Codec = aggregatorscheme.Codecs.LegacyCodec(v1.SchemeGroupVersion, v1beta1.SchemeGroupVersion)
	etcdOptions.StorageConfig.EncodeVersioner = runtime.NewMultiGroupVersioner(v1.SchemeGroupVersion, schema.GroupKind{Group: v1beta1.GroupName})
	etcdOptions.SkipHealthEndpoints = true // avoid double wiring of health checks
	if err := etcdOptions.ApplyTo(&genericConfig); err != nil {
		return nil, err

	if err != nil {
		t.Fatalf("unexpected encoding error: %v", err)
	}

	decoder := legacyscheme.Codecs.DecoderToVersion(
		legacyscheme.Codecs.UniversalDeserializer(),
		runtime.NewMultiGroupVersioner(
			defaultGroup,
			schema.GroupKind{Group: defaultGroup.Group},
			schema.GroupKind{Group: extGroup.Group},
		),
	)

	t.Logf("rs.v1.apps -> rc._internal")