{
  "list": {
    "_count": 2,
    "_counter": 3,
    "hash": {
      "1": {
        "DeviceId": "1112221",
        "Username": "testuser01",
        "id": 1
      },
      "2": {
        "DeviceId": "111222",
        "Username": "testuser01",
        "id": 2
      }
    }
  },
  "indexes": {
    "id": {
      "1": 1,
      "2": 2
    },
    "DeviceId": {
      "111222": 2,
      "1112221": 1
    },
    "Username": {
      "testuser01": [
        1,
        2
      ]
    }
  },
  "indexDefs": {
    "id": {
      "key": "id",
      "auto": true,
      "unique": true,
      "sparse": false,
      "required": true,
      "gen": "autoIncIdGen"
    },
    "DeviceId": {
      "key": "DeviceId",
      "auto": false,
      "unique": true,
      "sparse": true,
      "required": true
    },
    "Username": {
      "key": "Username",
      "auto": false,
      "unique": false,
      "sparse": false,
      "required": true
    }
  },
  "id": "id",
  "ttl": false
}