sum(rate(labels('istio_tcp_connections_opened_total', podLabels)), by=['pod'])
          ),
          self.query(
            'Closed ({{pod}})',
            '-' + sum(rate(labels('istio_tcp_connections_closed_total', podLabels)), by=['pod'])
          ),
        ],

      bytes:
        [
          self.query(
            'Sent ({{pod}})',

            },
            {
               "datasource": {
                  "type": "prometheus",
                  "uid": "$datasource"
               },
               "expr": "-sum by (pod) (rate(istio_tcp_connections_closed_total{pod=~\"ztunnel-.*\"}[$__rate_interval]))",
               "legendFormat": "Closed ({{pod}})"
            }
         ],
         "title": "Connections",
         "type": "timeseries"
      },