dependGlobalLockServer          bool
	dependGlobalIsDistErasure       bool
	dependGlobalBackgroundHealState bool
	dependBucketTargetSys           bool
}

// RegisterRead register the metrics populator function to be used
// to populate new values upon cache invalidation.
func (g *MetricsGroupV2) RegisterRead(read func(context.Context) []MetricV2) {
	g.metricsCache = cachevalue.NewFromFunc(g.cacheInterval,

          "type": "string"
        },
        "selfLink": {

            "description": "extra contains extra attributes of the user that created the CertificateSigningRequest. Populated by the API server on creation and immutable.",
            "type": "object"
          },
          "groups": {
            "description": "groups contains group membership of the user that created the CertificateSigningRequest. Populated by the API server on creation and immutable.",
            "items": {
              "default": "",

		Before []v1.NodeAddress
		After  []v1.NodeAddress
	}{
		{
			Name:   "nil to populated",
			Before: nil,
			After: []v1.NodeAddress{
				{Type: v1.NodeInternalIP, Address: "127.0.0.1"},
				{Type: v1.NodeHostName, Address: testKubeletHostname},
			},
		},
		{
			Name:   "empty to populated",
			Before: []v1.NodeAddress{},
			After: []v1.NodeAddress{

	// to CloseNotifier callers. It is usually of type *net.TCPConn or
	// *tls.Conn.
	rwc net.Conn

	// remoteAddr is rwc.RemoteAddr().String(). It is not populated synchronously
	// inside the Listener's Accept goroutine, as some implementations block.
	// It is populated immediately inside the (*conn).serve goroutine.
	// This is the value of a Handler's (*Request).RemoteAddr.
	remoteAddr string

            "type": "string"
          },
          "selfLink": {
            "description": "Deprecated: selfLink is a legacy read-only field that is no longer populated by the system.",
            "type": "string"
          }

  }

  // Populate return_nodes
  DCHECK(tf_results->return_nodes.empty());
  tf_results->return_nodes.resize(results.return_nodes.size());
  for (int i = 0; i < results.return_nodes.size(); ++i) {
    tf_results->return_nodes[i] = ToOperation(results.return_nodes[i]);
  }

  // Populate missing unused map keys
  DCHECK(tf_results->missing_unused_key_names.empty());

            "type": "string"
          },
          "selfLink": {
            "description": "Deprecated: selfLink is a legacy read-only field that is no longer populated by the system.",
            "type": "string"
          }

            "type": "string"
          },
          "selfLink": {
            "description": "Deprecated: selfLink is a legacy read-only field that is no longer populated by the system.",
            "type": "string"
          }

            "type": "string"
          },
          "selfLink": {
            "description": "Deprecated: selfLink is a legacy read-only field that is no longer populated by the system.",
            "type": "string"
          }