{
  "AWS/QLDB": {
    "dimensions": [
		{
		"key" : "LedgerName"
	},
	{
		"key" : "StreamId"
	}
    ],
	"tags":[
	  {
	     "key": "qldb:stream"
	  }
	],
    "metrics": [
      {
        "id": 1,
        "metric_name": "IsImpaired"
      }
    ]
  }
}