{

"type": "object",
"optional": true,
"required": [
  "startedDateTime",
  "id",
  "title",
  "pageTimings"
],
"properties": {
  "startedDateTime": {
    "type": "string",
    "format": "date-time",
    "pattern": "^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))"
  },
  "id": {
    "type": "string",
    "unique": true
  },
  "title": {
    "type": "string"
  },
  "pageTimings": {
    "$ref": "#pageTimings"
  },
  "comment": {
    "type": "string"
  }
}

}