/**
  * @param OperationStartEvent $event
  */
 public function onOperationStart(OperationStartEvent $event)
 {
     $operation = $event->getOperation();
     $this->logManager->log(sprintf("Operation '%s' started", $operation->getName()));
 }
 /**
  * @param OperationStartEvent $event
  */
 public function onOperationStart(OperationStartEvent $event)
 {
     $operation = $event->getOperation();
     $this->log('operation.start', $operation->getId(), $operation->getBatch());
 }