public function helpCommand(CommandEventInterface $event, EventQueueInterface $queue)
    {
        $command = strpos($event->getCustomCommand(), '.help') !== false
            ? substr($event->getCustomCommand(), 0, -5)
            : $event->getCustomParams()[0];
        $this->helpMessages([ $queue, 'irc'.$event->getCommand() ], $event->getSource(), $command);
    }