original_string: public function getNotificationDispatcher(): ?Dispatcher
      {
          if (!$this->hasNotificationDispatcher()) {
              $this->setNotificationDispatcher($this->getDefaultNotificationDispatcher());
          }
          return $this->notificationDispatcher;
      }
code: public function getNotificationDispatcher(): ?Dispatcher
      {
          if (!$this->hasNotificationDispatcher()) {
              $this->setNotificationDispatcher($this->getDefaultNotificationDispatcher());
          }
          return $this->notificationDispatcher;
      }
code_tokens: public function getNotificationDispatcher ( ) : ? Dispatcher { if ( ! $ this -> hasNotificationDispatcher ( ) ) { $ this -> setNotificationDispatcher ( $ this -> getDefaultNotificationDispatcher ( ) ) ; } return $ this -> notificationDispatcher ; }
docstring: Get notification dispatcher
  
  If no notification dispatcher has been set, this method will
  set and return a default notification dispatcher, if any such
  value is available
  
  @see getDefaultNotificationDispatcher()
  
  @return Dispatcher|null notification dispatcher or null if none notification dispatcher has been set
docstring_tokens: Get notification dispatcher