Webmozart\Console\Config\DefaultApplicationConfig::resolveHelpCommand PHP Method

    public function resolveHelpCommand(PreResolveEvent $event)
    {
        $args = $event->getRawArgs();
        if ($args->hasToken('-h') || $args->hasToken('--help')) {
            $command = $event->getApplication()->getCommand('help');
            // Enable lenient args parsing
            $parsedArgs = $command->parseArgs($args, true);
            $event->setResolvedCommand(new ResolvedCommand($command, $parsedArgs));
            $event->stopPropagation();
        }
    }