original_string: public function hasListeners($eventName)
      {
          return isset($this->listeners[$eventName]) || isset($this->wildcards[$eventName]);
      }
code: public function hasListeners($eventName)
      {
          return isset($this->listeners[$eventName]) || isset($this->wildcards[$eventName]);
      }
code_tokens: public function hasListeners ( $ eventName ) { return isset ( $ this -> listeners [ $ eventName ] ) || isset ( $ this -> wildcards [ $ eventName ] ) ; }
docstring: Determine if a given event has listeners.
  
  @param  string  $eventName
  @return bool
docstring_tokens: Determine if a given event has listeners .