apple-device-management-mdm/examples/declarative/status/account.list.caldav/example1.json

{
    "account": {
        "list": {
            "caldav": [
                {
                    "identifier": "C8AD8975-FC88-4B44-AE17-123456789012",
                    "declaration-identifier": "com.example.caldav-account",
                    "visible-name": "Work Calendar",
                    "hostname": "caldav.example.com",
                    "port": 443,
                    "username": "user@example.com",
                    "are-calendars-enabled": true,
                    "are-reminders-enabled": true
                }
            ]
        }
    }
}