public function afterSuite(SuiteEvent $event)
 {
     parent::afterSuite($event);
     $logger = $event->getLogger();
     $this->writeln("\n{+passed}Behat Steps Analysis{-passed}");
     $this->writeln('====================');
     $this->printStepsUsages($logger);
     $this->printMergeableSteps($logger);
 }