public function showHelp()
    {
        $writer = $this->io()->writer();
        $header = "{$this->name}, version {$this->version}";
        $footer = 'Run `<command> --help` for specific help';

        if ($this->logo) {
            $writer->write($this->logo, true);
        }

        $this->outputHelper()->showCommandsHelp($this->commands(), $header, $footer);

        return ($this->onExit)();
    }