return nil, fmt.Errorf("could not unmarshal Node: %w", err)
				}
				meta, err := model.ParseMetadata(node.Metadata)
				if err != nil || meta.ProxyConfig == nil {
					// Skip non-sidecars (e.g. istioctl queries)
					continue
				}
				pi = append(pi, istioVersion.ProxyInfo{
					ID:           node.Id,
					IstioVersion: getIstioVersionFromXdsMetadata(node.Metadata),
				})

          },
          "expr": "round(sum(irate(istio_requests_total{reporter=~\"$qrep\",destination_workload_namespace=~\"$namespace\",destination_workload=~\"$workload\"}[5m])), 0.001)",
          "format": "time_series",
          "intervalFactor": 1,
          "refId": "A",
          "step": 4
        }
      ],
      "title": "Incoming Request Volume",
      "type": "stat"
    },
    {
      "datasource": {

        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "sum(istio_build{component=\"pilot\"}) by (tag)",
          "format": "time_series",
          "intervalFactor": 1,
          "legendFormat": "{{ tag }}",
          "refId": "A"
        }
      ],
      "title": "Pilot Versions",
      "type": "timeseries"
    },
    {

  // eventTime is the time when this Event was first observed. It is required.
  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime eventTime = 2;

  // series is data about the Event series this event represents or nil if it's a singleton Event.
  // +optional
  optional EventSeries series = 3;

  // reportingController is the name of the controller that emitted this Event, e.g. `kubernetes.io/kubelet`.
  // This field cannot be empty for new Events.

          },
          "expr": "sum(rate(istio_requests_total{reporter=\"source\", response_code!~\"5.*\"}[1m])) / sum(rate(istio_requests_total{reporter=\"source\"}[1m]))",
          "format": "time_series",
          "intervalFactor": 1,
          "refId": "A",
          "step": 4
        }
      ],
      "title": "Global Success Rate (non-5xx responses)",
      "type": "stat"
    },
    {

          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "sum(container_memory_working_set_bytes{container=\"istio-proxy\"})",
          "format": "time_series",
          "hide": false,
          "intervalFactor": 2,
          "legendFormat": "Total (k8s)",
          "refId": "A",
          "step": 2
        }
      ],
      "title": "Memory",

	}
	return canned, nil, nil
}

func (client mockPromAPI) WalReplay(ctx context.Context) (promv1.WalReplayStatus, error) {
	// TODO implement me
	panic("implement me")
}

func (client mockPromAPI) Series(ctx context.Context, matches []string,
	startTime time.Time, endTime time.Time,
) ([]prometheus_model.LabelSet, promv1.Warnings, error) {
	return nil, nil, nil
}

message ExternalMetricSource {
  // metricName is the name of the metric in question.
  optional string metricName = 1;

  // metricSelector is used to identify a specific time series
  // within a given metric.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector metricSelector = 2;

  // targetValue is the target value of the metric (as a quantity).