code: void send(final InterfaceFeature feature) throws KNXConnectionClosedException, KNXAckTimeoutException, InterruptedException {
  		synchronized (lock) {
  			final TunnelingFeature get = TunnelingFeature.newGet(channelId, getSeqSend(), feature);
  			send(get);
  		}
  	}
docs: sendFeature / getFeature?