[
  {
    "schema_valid": true,
    "generated": {
      "x": null
    }
  },
  {
    "schema_valid": true,
    "generated": {
      "x": {
        "a": 1
      }
    }
  },
  {
    "schema_valid": false,
    "generated": {
      "x": {}
    }
  }
]