public Set<E> edgesConnecting(EndpointPair<N> endpoints) {
    return delegate().edgesConnecting(endpoints);
  }

  @Override
  public Optional<E> edgeConnecting(N nodeU, N nodeV) {
    return delegate().edgeConnecting(nodeU, nodeV);
  }

  @Override
  public Optional<E> edgeConnecting(EndpointPair<N> endpoints) {
    return delegate().edgeConnecting(endpoints);
  }

  @Override
  @CheckForNull

var errEtcdUnreachable = errors.New("etcd is unreachable, please check your endpoints")

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:
		return fmt.Errorf("%w %s", errEtcdUnreachable, etcdEndpoints)
	default:
		return fmt.Errorf("unexpected error %w from etcd, please check your endpoints %s", err, etcdEndpoints)
	}
}

   * order, if any, specified by {@code endpoints}).
   *
   * <p>The resulting set of edges will be parallel (i.e. have equal {@link
   * #incidentNodes(Object)}). If this network does not {@link #allowsParallelEdges() allow parallel
   * edges}, the resulting set will contain at most one edge (equivalent to {@code
   * edgeConnecting(endpoints).asSet()}).
   *

[
    {
        "clusterName": "outbound|80||istio-ingressgateway.istio-system.svc.cluster.local",
        "endpoints": [
            {
                "locality": {},
                "lbEndpoints": [
                    {
                        "endpoint": {
                            "address": {
                                "socketAddress": {
                                    "address": "10.244.0.176",

- clusterName: outbound|80||istio-ingressgateway.istio-system.svc.cluster.local
  endpoints:
  - lbEndpoints:
    - endpoint:
        address:
          socketAddress:
            address: 10.244.0.176
            portValue: 8080
        healthCheckConfig: {}
      healthStatus: HEALTHY
      loadBalancingWeight: 1
      metadata:
        filterMetadata:
          istio:

  }

  @Override
  public boolean hasEdgeConnecting(EndpointPair<N> endpoints) {
    checkNotNull(endpoints);
    return isOrderingCompatible(endpoints)
        && hasEdgeConnectingInternal(endpoints.nodeU(), endpoints.nodeV());
  }

  @Override
  @CheckForNull
  public V edgeValueOrDefault(N nodeU, N nodeV, @CheckForNull V defaultValue) {

      "hostname": "namespace-istio-waypoint.bookinfo.svc.cluster.local",
      "vips": [
        "/10.96.65.117"
      ],
      "ports": {
        "15008": 15008,
        "15021": 15021
      },
      "endpoints": {
        "Kubernetes//Pod/bookinfo/namespace-istio-waypoint-d94944bf6-z89g2:/10.244.2.52": {
          "workloadUid": "Kubernetes//Pod/bookinfo/namespace-istio-waypoint-d94944bf6-z89g2",

     *
     * <p>If either or both endpoints are not already present in this graph, this method will
     * silently {@link #addNode(Object) add} each missing endpoint to the graph.
     *
     * @return this {@code Builder} object
     * @throws IllegalArgumentException if the introduction of the edge would violate {@link
     *     #allowsSelfLoops()}
     * @throws IllegalArgumentException if the endpoints are unordered and the graph is directed

	}
	for i := range endpoints {
		endpoints[i].SetPoolIndex(poolIdx)
		endpoints[i].SetSetIndex(i / drivesPerSet)
		endpoints[i].SetDiskIndex(i % drivesPerSet)
	}
	return endpoints
}

func getEndpointsLocalAddr(endpointServerPools EndpointServerPools) string {
	for _, endpoints := range endpointServerPools {
		for _, endpoint := range endpoints.Endpoints {
			if endpoint.IsLocal && endpoint.Type() == URLEndpointType {

  public boolean hasEdgeConnecting(EndpointPair<N> endpoints) {
    return delegate().hasEdgeConnecting(endpoints);
  }

  @Override
  @CheckForNull
  public V edgeValueOrDefault(N nodeU, N nodeV, @CheckForNull V defaultValue) {
    return delegate().edgeValueOrDefault(nodeU, nodeV, defaultValue);
  }

  @Override
  @CheckForNull
  public V edgeValueOrDefault(EndpointPair<N> endpoints, @CheckForNull V defaultValue) {