unregisterAdvertisement method
This unregisters an advertisement that has been previously registered using registerAdvertisement.
Implementation
Future<void> unregisterAdvertisement(BlueZAdvertisement advert) async {
await _object.callMethod(
_advertInterfaceName, 'UnregisterAdvertisement', [advert.path],
replySignature: DBusSignature(''));
await _client.unregisterObject(advert);
}