{
  "cases": [
    {
      "case": "complete",
      "state": "complete",
      "count": 513,
      "first": 1,
      "last": 513
    },
    {
      "case": "missing",
      "state": "pending",
      "missing_pages": [
        1
      ]
    },
    {
      "case": "conflicting_last_page",
      "state": "conflict",
      "reason": "页范围或Last Page不一致"
    }
  ],
  "real_discovery_performed": false
}