FreeBusyRequest

{
    "calendarExpansionMax": 0,
    "groupExpansionMax": 0,
    "items": [
        {
            "id": "string"
        }
    ],
    "timeMax": "2019-08-24T14:15:22Z",
    "timeMin": "2019-08-24T14:15:22Z",
    "timeZone": "UTC"
}