[
  {
    "op": "core/text-transform",
    "engineConfig": {
      "facets": [
        {
          "type": "list",
          "name": "mets:mets - mets:fileSec - mets:fileGrp - mets:file - ID",
          "expression": "isBlank(value)",
          "columnName": "mets:mets - mets:fileSec - mets:fileGrp - mets:file - ID",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        }
      ],
      "mode": "row-based"
    },
    "columnName": "mets:mets - mets:fileSec - mets:fileGrp - mets:file - ID",
    "expression": "grel:'FILE_' + row.record.cells['id'].value[0].split(':')[-1] + '_' + (row.index - row.record.fromRowIndex + 1)",
    "onError": "keep-original",
    "repeat": false,
    "repeatCount": 10,
    "description": "Text transform on cells in column mets:mets - mets:fileSec - mets:fileGrp - mets:file - ID using expression grel:'FILE_' + row.record.cells['id'].value[0].split(':')[-1] + '_' + (row.index - row.record.fromRowIndex + 1)"
  }
]