public function execute(InputInterface $input, OutputInterface $output)
 {
     $session = $this->get('phpcr.session');
     $retentionManager = $session->getRetentionManager();
     $absPath = $input->removeArgument('absPath');
     $policy = $retentionManager->getRetentionPolicy($absPath);
     if (!$policy) {
         $output->writeln('No retention policy');
     } else {
         $output->writeln($policy->remove());
     }
 }