public function dir(OutputInterface $output, $response)
    {
        if (empty($response)) {
            $output->writeln('<info>No plugin installed</info>');
        } else {
            $headers = array('Plugin Class', 'Events Subscribed');
            $rows    = array();

            foreach ($response as $pluginClass => $events) {
                $first  = true;
                foreach ($events as $event) {
                    if (!$first) {
                        $rows[] = array('', $event);
                    } else {
                        $rows[] = array($pluginClass, $event);
                        $first  = false;
                    }
                }
            }
            $this->tableHelper($output, $headers, $rows);
        }
    }