code: public void setRoomConfigs(String roomName, HashMap<String, String> customConfigs)
              throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          MUCLightSetConfigsIQ mucLightSetConfigIQ = new MUCLightSetConfigsIQ(room, roomName, customConfigs);
          connection.createStanzaCollectorAndSend(mucLightSetConfigIQ).nextResultOrThrow();
      }
docs: Set the room configurations.
  
  @param roomName
  @param customConfigs
  @throws NoResponseException
  @throws XMPPErrorException
  @throws NotConnectedException
  @throws InterruptedException