public function blame(TutorialInterface $tutorial)
 {
     if (null === $this->securityContext->getToken()) {
         throw new \RuntimeException('You must configure a firewall for this route');
     }
     if ($this->securityContext->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
         $tutorial->setAuthor($this->securityContext->getToken()->getUser());
     }
 }