// in fewer places.
type GroupVersions []GroupVersion

// Identifier implements runtime.GroupVersioner interface.
func (gvs GroupVersions) Identifier() string {
	groupVersions := make([]string, 0, len(gvs))
	for i := range gvs {
		groupVersions = append(groupVersions, gvs[i].String())
	}
	return fmt.Sprintf("[%s]", strings.Join(groupVersions, ","))
}

	}

	switch version {
	case authenticationv1.SchemeGroupVersion.Version:
		groupVersions := []schema.GroupVersion{authenticationv1.SchemeGroupVersion}
		if err := localScheme.SetVersionPriority(groupVersions...); err != nil {
			return nil, err
		}
		gw, err := webhook.NewGenericWebhook(localScheme, scheme.Codecs, config, groupVersions, retryBackoff)
		if err != nil {
			return nil, err
		}

func NewGenericWebhook(scheme *runtime.Scheme, codecFactory serializer.CodecFactory, config *rest.Config, groupVersions []schema.GroupVersion, retryBackoff wait.Backoff) (*GenericWebhook, error) {
	for _, groupVersion := range groupVersions {
		if !scheme.IsVersionRegistered(groupVersion) {
			return nil, fmt.Errorf("webhook plugin requires enabling extension resource: %s", groupVersion)
		}
	}

	clientConfig := rest.CopyConfig(config)

	if len(l) == 0 {
		l = "<none>"
	}
	return l
}

func ExtractGroupVersions(l *APIGroupList) []string {
	var groupVersions []string
	for _, g := range l.Groups {
		for _, gv := range g.Versions {
			groupVersions = append(groupVersions, gv.GroupVersion)
		}
	}
	return groupVersions
}

// HasAnnotation returns a bool if passed in annotation exists
func HasAnnotation(obj ObjectMeta, ann string) bool {

	if len(testCodecMediaType) != 0 {
		serializerInfo, ok := runtime.SerializerInfoForMediaType(codecs.SupportedMediaTypes(), testCodecMediaType)
		if !ok {
			panic(fmt.Sprintf("no serializer for %s", testCodecMediaType))
		}
		return codecs.CodecForVersions(serializerInfo.Serializer, codecs.UniversalDeserializer(), schema.GroupVersions(gvs), nil)
	}

	}

	switch version {
	case authorizationv1.SchemeGroupVersion.Version:
		groupVersions := []schema.GroupVersion{authorizationv1.SchemeGroupVersion}
		if err := localScheme.SetVersionPriority(groupVersions...); err != nil {
			return nil, err
		}
		gw, err := webhook.NewGenericWebhook(localScheme, scheme.Codecs, config, groupVersions, retryBackoff)
		if err != nil {
			return nil, err
		}

// All other callers will be forced to request a Codec directly.
func (f CodecFactory) LegacyCodec(version ...schema.GroupVersion) runtime.Codec {
	return versioning.NewDefaultingCodecForScheme(f.scheme, f.legacySerializer, f.universal, schema.GroupVersions(version), runtime.InternalGroupVersioner)
}

// UniversalDeserializer can convert any stored data recognized by this factory into a Go object that satisfies

func GetTestScheme() *runtime.Scheme {
	internalGV := schema.GroupVersion{Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Version: "v1"}
	alternateExternalGV := schema.GroupVersion{Group: "custom", Version: "v1"}
	alternateInternalGV := schema.GroupVersion{Group: "custom", Version: runtime.APIVersionInternal}
	differentExternalGV := schema.GroupVersion{Group: "other", Version: "v2"}

	s := runtime.NewScheme()

		},
	}
	namedCluster = v1.NamedCluster{
		Cluster: v1.Cluster{
			Server:                   "https://webhook.example.com",
			CertificateAuthorityData: caCert,
		},
		Name: "test-cluster",
	}
	groupVersions = []schema.GroupVersion{}
	retryBackoff  = DefaultRetryBackoffWithInitialDelay(time.Duration(500) * time.Millisecond)
)

// TestKubeConfigFile ensures that a kube config file, regardless of validity, is handled properly

	return disabledGroupVersionerIdentifier
}

// Assert that schema.GroupVersion and GroupVersions implement GroupVersioner
var _ GroupVersioner = schema.GroupVersion{}
var _ GroupVersioner = schema.GroupVersions{}
var _ GroupVersioner = multiGroupVersioner{}

type multiGroupVersioner struct {
	target             schema.GroupVersion
	acceptedGroupKinds []schema.GroupKind
	coerce             bool
}