/**
  * Create service
  *
  * @param  ServiceLocatorInterface $serviceLocator
  * @return TwViewHelper
  */
 public function createService(ServiceLocatorInterface $serviceLocator)
 {
     $parentLocator = $serviceLocator->getServicelocator();
     return new TwViewHelper($parentLocator->get(WidgetOptions::class), $parentLocator->get(TimelineBuilder::class));
 }