Required properties:
remote<string>Remote ID.
remote-store<string>Datastore name.
store<string>Datastore name.
Optional properties:
comment<string>Comment (single line).
owner<string>Authentication ID
remove-vanished<boolean> (default=true)Delete vanished backups. This remove the local copy if the remote backup was deleted.
schedule<calendar-event>Run sync job at specified schedule.