original_string: public function addEventListener($eventName, callable $listener, $priority = Emitter::P_NORMAL)
      {
          $this->eventEmitter->addListener($eventName, $listener, $priority);
      }
code: public function addEventListener($eventName, callable $listener, $priority = Emitter::P_NORMAL)
      {
          $this->eventEmitter->addListener($eventName, $listener, $priority);
      }
code_tokens: public function addEventListener ( $ eventName , callable $ listener , $ priority = Emitter :: P_NORMAL ) { $ this -> eventEmitter -> addListener ( $ eventName , $ listener , $ priority ) ; }
docstring: Add an event listener to the event emitter
  
  @param string   $eventName Event name
  @param callable $listener  Callable function or method
  @param int      $priority  Priority of event listener
docstring_tokens: Add an event listener to the event emitter