code: public void updateChannelConfiguration(UpdateChannelConfiguration updateChannelConfiguration, byte[]... signers) throws TransactionException, InvalidArgumentException {
  
          updateChannelConfiguration(updateChannelConfiguration, getRandomOrderer(), signers);
  
      }
docs: Update channel with specified channel configuration
  
  @param updateChannelConfiguration Updated Channel configuration
  @param signers                    signers
  @throws TransactionException
  @throws InvalidArgumentException