Debugging stacking "version graph" in Datadog.

metric.json

{
  "series": [
    {
      "metric": "corp.service.heartbeat",
      "type": 3,
      "points": [
        {
          "timestamp": timestamp_unix(),
          "value": 1,
        }
      ],
      "tags": [
        "env:prod",
        "service:flow",
        "application:" + this.name,
        "version:" + this.version,
      ]
    }
  ]
}