groups := allHeaderValues(req.Header, a.groupHeaders.Value())
	extra := newExtra(req.Header, a.extraHeaderPrefixes.Value())

	// clear headers used for authentication
	ClearAuthenticationHeaders(req.Header, a.nameHeaders, a.groupHeaders, a.extraHeaderPrefixes)

	return &authenticator.Response{
		User: &user.DefaultInfo{
			Name:   name,
			Groups: groups,
			Extra:  extra,
		},
	}, true, nil
}

func (s *LSym) NewFuncInfo() *FuncInfo {
	if s.Extra != nil {
		panic(fmt.Sprintf("invalid use of LSym - NewFuncInfo with Extra of type %T", *s.Extra))
	}
	f := new(FuncInfo)
	s.Extra = new(interface{})
	*s.Extra = f
	return f
}

// Func returns the *FuncInfo associated with s, or else nil.
func (s *LSym) Func() *FuncInfo {
	if s.Extra == nil {
		return nil
	}
	f, _ := (*s.Extra).(*FuncInfo)

    @ToBeFixedForConfigurationCache(skip = INVESTIGATE)
    def 'extra properties are inherited to child and grandchild projects'() {
        given:
        extraPropertiesMultiBuild()

        expect:
        succeeds checkTestPropTasks()
    }

    @Issue('GRADLE-3530')
    @ToBeFixedForConfigurationCache(skip = INVESTIGATE)
    def 'extra properties can be overridden on child projects'() {
        given:

		ev, ok := s2.MinioEnv[k]
		if !ok {
			missing = append(missing, k)
		} else if v != ev {
			mismatching = append(mismatching, k)
		}
	}
	var extra []string
	for k := range s2.MinioEnv {
		_, ok := s1.MinioEnv[k]
		if !ok {
			extra = append(extra, k)
		}
	}
	msg := "Expected same MINIO_ environment variables and values across all servers: "
	if len(missing) > 0 {

// fundamental data structure across.
type baseEvent struct {
	typ  event.Type
	time Time
	args timedEventArgs
}

// extra returns a slice representing extra available space in args
// that the parser can use to pass data up into Event.
func (e *baseEvent) extra(v version.Version) []uint64 {
	switch v {
	case version.Go122:
		return e.args[len(go122.Specs()[e.typ].Args)-1:]
	}

// and deletes user-reported metrics.
// It does not affect whether the timer is running.
func (b *B) ResetTimer() {
	if b.extra == nil {
		// Allocate the extra map before reading memory stats.
		// Pre-size it to make more allocation unlikely.
		b.extra = make(map[string]float64, 16)
	} else {
		clear(b.extra)
	}
	if b.timerOn {
		runtime.ReadMemStats(&memStats)
		b.startAllocs = memStats.Mallocs

				"--requestheader-username-headers=X-Remote-User",
				"--requestheader-group-headers=X-Remote-Group",
				"--requestheader-extra-headers-prefix=X-Remote-Extra-",
				"--requestheader-client-ca-file=" + filepath.Join(testCertsDir, "front-proxy-ca.crt"),
				"--requestheader-allowed-names=front-proxy-client",
				"--authorization-mode=Node,RBAC",

spec:
  selector:
    app: my-service
  ports:
  - name: tcp-foo
    protocol: TCP
    port: 8080
    targetPort: 8080
---
# Service with extra port in cluster2, should generate warning.
apiVersion: v1
kind: Service
metadata:
  name: extra-port
  namespace: my-namespace
spec:
  selector:
    app: my-service
  ports:
  - name: tcp-foo
    protocol: TCP
    port: 8080
    targetPort: 8080

	if utilfeature.DefaultFeatureGate.Enabled(features.UnknownVersionInteroperabilityProxy) {
		peeraddress := getPeerAddress(c.Extra.PeerAdvertiseAddress, c.Generic.PublicAddress, publicServicePort)
		peerEndpointCtrl := peerreconcilers.New(
			c.Generic.APIServerID,
			peeraddress,
			c.Extra.PeerEndpointLeaseReconciler,
			c.Extra.PeerEndpointReconcileInterval,
			client)
		if err != nil {

	// +optional
	UID ClaimOrExpression `json:"uid"`

	// extra represents an option for the extra attribute.
	// expression must produce a string or string array value.
	// If the value is empty, the extra mapping will not be present.
	//
	// hard-coded extra key/value
	// - key: "foo"
	//   valueExpression: "'bar'"
	// This will result in an extra attribute - foo: ["bar"]
	//
	// hard-coded key, value copying claim value