{
  "AWS/TransitGateway": {
    "dimensions": [
      {
        "key": "TransitGateway"
      }
    ],
    "metrics": [
      {
        "id": 1,
        "metric_name": "BytesIn"
      },
      {
        "id": 2,
        "metric_name": "BytesOut"
      },
      {
        "id": 3,
        "metric_name": "PacketsIn"
      },
      {
        "id": 4,
        "metric_name": "PacketsOut"
      },
      {
        "id": 5,
        "metric_name": "PacketDropCountBlackhole"
      },
      {
        "id": 6,
        "metric_name": "PacketDropCountNoRoute"
      },
      {
        "id": 7,
        "metric_name": "BytesDropCountBlackhole"
      },
      {
        "id": 8,
        "metric_name": "BytesDropCountNoRoute"
      }
    ]
  }
}