[
  {
    "bases": [
      "AliasPairParent"
    ],
    "fields": [
      "old",
      "old_other"
    ]
  },
  {
    "payload": {},
    "source": {
      "old_other": 4
    },
    "generated": {
      "old_other": 4
    }
  },
  {
    "payload": {
      "old_other": 8
    },
    "source": {
      "old_other": 8
    },
    "generated": {
      "old_other": 8
    }
  },
  {
    "payload": {
      "old": 8
    },
    "source": {
      "old_other": 4
    },
    "generated": {
      "old_other": 4
    }
  }
]