code: protected function addActions(Definition $paymentDefinition, ContainerBuilder $container, $contextName, array $config)
      {
  		if ( isset($config['sandbox']) && $config['sandbox'] != false )
  		{
  	        $loggerDefinition = new Definition();
  	        $loggerDefinition->setClass('Eki\Payum\Nganluong\Action\LoggerAwareAction');
  			$loggerDefinition->addMethodCall(
  				'setLogger',
  				array(new Reference('logger'))
  			);
  			$loggerActionId = 'payum.'.$contextName.'.nganluong.action.logger_aware';
  	        $container->setDefinition($loggerActionId, $loggerDefinition);
  
              $paymentDefinition->addMethodCall(
                  'addAction',
                  array(new Reference($loggerActionId), $forcePrepend = true)
              );
  		}
      }
docs: {@inheritDoc}