// upstream cluster will use HTTP 1.1, if incoming traffic use HTTP2,
		// the upstream cluster will use HTTP2.
		cb.setUseDownstreamProtocol(cluster)
	}
}

// normalizeClusters normalizes clusters to avoid duplicate clusters. This should be called
// at the end before adding the cluster to list of clusters.
func (cb *ClusterBuilder) normalizeClusters(clusters []*discovery.Resource) []*discovery.Resource {

			map[string]string{
				GCPProject: "pid", GCPProjectNumber: "npid", GCPLocation: "location", GCPCluster: "cluster", GCEInstance: "instanceName",
				GCEInstanceID: "instance", GCEInstanceTemplate: "instanceTemplate", GCEInstanceCreatedBy: "createdBy",
				GCPClusterURL: "https://container.googleapis.com/v1/projects/pid/locations/location/clusters/cluster",
			},
		},
		{
			"project id error",
			func() bool { return true },

      cluster.constraints = std::move(member.constraints);

    // Add operation to the cluster.
    if (auto op = member.source.dyn_cast<Operation *>())
      cluster.operations.emplace_back(op);
  }

  llvm::SmallVector<Cluster> clusters;
  for (auto &kv : root_clusters) {
    Cluster &cluster = kv.getSecond();
    // Skip degenerate clusters formed by a single basic block argument.

		Long:  `Retrieve information about cluster configuration for the Envoy instance in the specified pod.`,
		Example: `  # Retrieve summary about cluster configuration for a given pod from Envoy.
  istioctl proxy-config clusters <pod-name[.namespace]>

  # Retrieve cluster summary for clusters with port 9080.
  istioctl proxy-config clusters <pod-name[.namespace]> --port 9080

//   1. Find associated TPUReplicateMetadata attributes with the same
//      `_replication_info` attribute.
//   2. Find users not in cluster that are interleaved between cluster ops.
//   3. Find external uses of cluster ops.
//   4. Create `tf_device.cluster` with results consisting of the external uses
//      of cluster ops determined at 3.
//   5. Move cluster ops to `tf_device.cluster` body.

	}

	// The ConfigMap should contain a single cluster
	if len(insecureConfig.Clusters) != 1 {
		return nil, errors.Errorf("expected the kubeconfig file in the %s ConfigMap to have a single cluster, but it had %d", bootstrapapi.ConfigMapClusterInfo, len(insecureConfig.Clusters))
	}

	// If no TLS root CA pinning was specified, we're done
	if pubKeyPins.Empty() {

		{
			first: &Service{
				ClusterVIPs: AddressMap{
					Addresses: map[cluster.ID][]string{
						"cluster-1": {"c1-vip1,c1-vip2"},
						"cluster-2": {"c2-vip1,c2-vip2"},
					},
				},
			},
			other: &Service{
				ClusterVIPs: AddressMap{
					Addresses: map[cluster.ID][]string{
						"cluster-1": {"c1-vip1,c1-vip2"},
						"cluster-2": {"c2-vip1,c2-vip2"},
					},
				},
			},
			shouldEq: true,

		}
		if got[0] != clusterName {
			t.Fatalf("expected cluster %v got %v", clusterName, got[0])
		}
	}

	cluster1 := "outbound|80||local.default.svc.cluster.local"
	sendEDSReqAndVerify(cluster1)
	cluster2 := "outbound|80||hello.default.svc.cluster.local"
	sendEDSReqAndVerify(cluster2)
}

// nolint: lll
func TestAdsPushScoping(t *testing.T) {

		Run(func(t framework.TestContext) {
			for _, cluster := range t.Clusters().Primaries() {
				cluster := cluster
				t.NewSubTest(cluster.StableName()).Run(func(t framework.TestContext) {
					istioCtl := istioctl.NewOrFail(t, t, istioctl.Config{Cluster: cluster})
					var output string
					args := []string{"remote-clusters"}
					output, _ = istioCtl.InvokeOrFail(t, args)

					"foo": {AuthInfo: "foo", Cluster: "foo"},
					"bar": {AuthInfo: "bar", Cluster: "bar"},
				},
				Clusters: map[string]*clientcmdapi.Cluster{
					"foo": {Server: "http://foo:8080"},
					"bar": {Server: "https://bar:16443"},
				},
			},
			expectedClusterName: "foo",
			expectedCluster: &clientcmdapi.Cluster{
				Server: "http://foo:8080",
			},
		},
		{