[
  {
    "op": "core/text-transform",
    "engineConfig": {
      "facets": [],
      "mode": "record-based"
    },
    "columnName": "mets:mets - mets:metsHdr - CREATEDATE",
    "expression": "value.toDate()",
    "onError": "keep-original",
    "repeat": false,
    "repeatCount": 10,
    "description": "Text transform on cells in column mets:mets - mets:metsHdr - CREATEDATE using expression value.toDate()"
  },
  {
    "op": "core/row-reorder",
    "mode": "record-based",
    "sorting": {
      "criteria": [
        {
          "valueType": "date",
          "column": "mets:mets - mets:metsHdr - CREATEDATE",
          "blankPosition": 2,
          "errorPosition": 1,
          "reverse": false
        }
      ]
    },
    "description": "Reorder rows"
  },
  {
    "op": "core/row-removal",
    "engineConfig": {
      "facets": [
        {
          "type": "list",
          "name": "id",
          "expression": "grel:with(value.cross('muenster', columnName), rows, if(rows.length() > 1, if(rows.index.sort()[-1] > row.index, 'is duplicate of a higher row number', 'has duplicate(s) with lower row number'), 'unique'))",
          "columnName": "id",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": "is duplicate of a higher row number",
                "l": "is duplicate of a higher row number"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        }
      ],
      "mode": "record-based"
    },
    "description": "Remove rows"
  }
]