"interval": "",
          "intervalFactor": 1,
          "legendFormat": "{{bucket,le,api}}",
          "refId": "A",
          "step": 300
        }
      ],
      "title": "TTFB Distribution",
      "type": "bargauge"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {