{
  "type": "CalendarQuery",
  "properties": {
    "type": "Prop",
    "data": [
      {
        "type": "WebDav",
        "data": {
          "type": "GetETag"
        }
      },
      {
        "type": "CalDav",
        "data": {
          "type": "CalendarData",
          "data": {
            "properties": [],
            "expand": null,
            "limit_recurrence": null,
            "limit_freebusy": null
          }
        }
      }
    ]
  },
  "filters": [
    {
      "type": "Property",
      "comp": [
        "VCalendar",
        "VTodo"
      ],
      "prop": {
        "type": "Completed"
      },
      "op": {
        "type": "Undefined"
      }
    },
    {
      "type": "Property",
      "comp": [
        "VCalendar",
        "VTodo"
      ],
      "prop": {
        "type": "Status"
      },
      "op": {
        "type": "TextMatch",
        "data": {
          "type": "TextMatch",
          "match_type": "Contains",
          "value": "CANCELLED",
          "collation": "AsciiCasemap",
          "negate": true
        }
      }
    }
  ],
  "timezone": {
    "type": "None"
  }
}