[
  {
    "op": "core/row-reorder",
    "description": "Reorder rows",
    "mode": "record-based",
    "sorting": {
      "criteria": [
        {
          "errorPosition": 1,
          "caseSensitive": false,
          "valueType": "string",
          "column": "email",
          "blankPosition": 2,
          "reverse": false
        }
      ]
    }
  },
  {
    "op": "core/column-addition",
    "description": "Create column count at index 1 based on column email using expression grel:facetCount(value, \"value\", \"email\")",
    "engineConfig": {
      "mode": "row-based",
      "facets": []
    },
    "newColumnName": "count",
    "columnInsertIndex": 1,
    "baseColumnName": "email",
    "expression": "grel:facetCount(value, \"value\", \"email\")",
    "onError": "set-to-blank"
  },
  {
    "op": "core/blank-down",
    "description": "Blank down cells in column email",
    "engineConfig": {
      "mode": "row-based",
      "facets": []
    },
    "columnName": "email"
  },
  {
    "op": "core/row-removal",
    "description": "Remove rows",
    "engineConfig": {
      "mode": "row-based",
      "facets": [
        {
          "omitError": false,
          "expression": "isBlank(value)",
          "selectBlank": false,
          "selection": [
            {
              "v": {
                "v": true,
                "l": "true"
              }
            }
          ],
          "selectError": false,
          "invert": false,
          "name": "email",
          "omitBlank": false,
          "type": "list",
          "columnName": "email"
        }
      ]
    }
  }
]