ProxyStatusNoService = monitoring.NewGauge(
		"pilot_no_ip",
		"Pods not found in the endpoint table, possibly invalid.",
	)

	// ProxyStatusEndpointNotReady represents proxies found not be ready.
	// Updated by GetProxyServiceTargets. Normal condition when starting
	// an app with readiness, error if it doesn't change to 0.
	ProxyStatusEndpointNotReady = monitoring.NewGauge(
		"pilot_endpoint_not_ready",

	keyIDHashStatusLastTimestampSecondsMetricLabels *lru.Cache
	cacheSize                                       = 100

	// This metric is only used for KMS v1 API.
	dekCacheFillPercent = metrics.NewGauge(
		&metrics.GaugeOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "dek_cache_fill_percent",
			Help:           "Percent of the cache slots currently occupied by cached DEKs.",

	"istio.io/istio/pkg/monitoring"
	"istio.io/istio/pkg/zdsapi"
)

var (
	ztunnelKeepAliveCheckInterval = 5 * time.Second
	readWriteDeadline             = 5 * time.Second
)

var ztunnelConnected = monitoring.NewGauge("ztunnel_connected",
	"number of connections to ztunnel")

type ZtunnelServer interface {
	Run(ctx context.Context)
	PodDeleted(ctx context.Context, uid string) error

		"Number of times remote clusters took too long to sync, causing slow startup that excludes remote clusters.",
	)

	clusterType = monitoring.CreateLabel("cluster_type")

	clustersCount = monitoring.NewGauge(
		"istiod_managed_clusters",
		"Number of clusters managed by istiod",
	)

	localClusters  = clustersCount.With(clusterType.Value("local"))
	remoteClusters = clustersCount.With(clusterType.Value("remote"))
)

			Name:           "target_seats",
			Help:           "Seat allocation targets",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{priorityLevel},
	)
	apiserverFairFracs = compbasemetrics.NewGauge(
		&compbasemetrics.GaugeOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "seat_fair_frac",

	endpointsWithNoPods = monitoring.NewSum(
		"pilot_k8s_endpoints_with_no_pods",
		"Endpoints that does not have any corresponding pods.")

	endpointsPendingPodUpdate = monitoring.NewGauge(
		"pilot_k8s_endpoints_pending_pod",
		"Number of endpoints that do not currently have any corresponding pods.",
	)
)

// Options stores the configurable attributes of a Controller.
type Options struct {

    /** {@inheritDoc} */
    public VersionRange getVersionRange() {
        return artifact.getVersionRange();
    }

    /** {@inheritDoc} */
    public void setVersionRange(VersionRange newRange) {
        artifact.setVersionRange(newRange);
    }

    /** {@inheritDoc} */
    public void selectVersion(String version) {
        artifact.selectVersion(version);
    }

    /** {@inheritDoc} */

    }

    public void restrictRange(Artifact artifact, Artifact replacement, VersionRange newRange) {
        logger.debug(indent + artifact + " (range restricted from: " + artifact.getVersionRange() + " and: "
                + replacement.getVersionRange() + " to: " + newRange + " )");
    }

    /**

                            // version but the restriction is identical
                            VersionRange newRange = previousRange.restrict(currentRange);
                            // TODO ick. this forces the OCE that should have come from the previous call. It is still
                            // correct
                            if (newRange.isSelectedVersionKnown(previous.getArtifact())) {
                                fireEvent(

    public void manageArtifact(Artifact artifact, Artifact replacement) {}

    public void selectVersionFromRange(Artifact artifact) {}

    public void restrictRange(Artifact artifact, Artifact replacement, VersionRange newRange) {}