code: public void setRoomConfigs(HashMap<String, String> customConfigs)
              throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          setRoomConfigs(null, customConfigs);
      }
docs: Set the room configurations.
  
  @param customConfigs
  @throws NoResponseException
  @throws XMPPErrorException
  @throws NotConnectedException
  @throws InterruptedException