[
  {
    "_id": {
      "$numberInt": "1"
    },
    "value": "some string"
  },
  {
    "_id": {
      "$numberInt": "2"
    },
    "value": {
      "$numberInt": "1234"
    }
  },
  {
    "_id": {
      "$numberInt": "3"
    }
  }
]