setDefinition([
            new InputArgument('group', InputArgument::REQUIRED, 'Group class name'),
        ]);
    }
    public function getDescription()
    {
        return 'Generates Group subscriber';
    }
    public function execute(InputInterface $input, OutputInterface $output)
    {
        $config = $this->getGlobalConfig();
        $group = $input->getArgument('group');
        $class = ucfirst($group);
        $path = $this->createDirectoryFor(Configuration::supportDir() . 'Group' . DIRECTORY_SEPARATOR, $class);
        $filename = $path . $class . '.php';
        $gen = new GroupGenerator($config, $group);
        $res = $this->createFile($filename, $gen->produce());
        if (!$res) {
            $output->writeln("Group $filename already exists");
            return;
        }
        $output->writeln("Group extension was created in $filename");
        $output->writeln(
            'To use this group extension, include it to "extensions" option of global Codeception config.'
        );
    }
}