[
  {
    "bases": [
      "AliasPairChild"
    ],
    "fields": [
      "old",
      "old_other"
    ]
  },
  {
    "payload": {},
    "source": {
      "newest": 3,
      "newest_other": 6
    },
    "generated": {
      "newest": 3,
      "newest_other": 6
    }
  },
  {
    "payload": {
      "newest": 8,
      "newest_other": 9
    },
    "source": {
      "newest": 8,
      "newest_other": 9
    },
    "generated": {
      "newest": 8,
      "newest_other": 9
    }
  },
  {
    "payload": {
      "new": 8,
      "new_other": 9
    },
    "source": {
      "newest": 3,
      "newest_other": 6
    },
    "generated": {
      "newest": 3,
      "newest_other": 6
    }
  }
]