{
  "input": {
    "type": "group",
    "userId": "user-id",
    "groupId": "group-id",
    "timestamp": "2014",
    "traits": {
      "created": "2014-01-01",
      "email": "friends@segment.io",
      "date": "2014-01-01",
      "trait": true,
      "name": "segment",
      "site": "https://segment.io"
    }
  },
  "output": {
    "groupId": "group-id",
    "timestamp": "2014-01-01T00:00:00.000Z",
    "traits": {
      "Group created": 1388534400,
      "Group date": 1388534400,
      "Group id": "group-id",
      "Group name": "segment",
      "Group site": "https://segment.io",
      "email": "friends@segment.io",
      "Group trait": true
    },
    "type": "group",
    "userId": "user-id"
  }
}