N98\Magento\Application::doRun PHP Method

    public function doRun(InputInterface $input, OutputInterface $output)
    {
        $event = new Application\Console\Event($this, $input, $output);
        $this->dispatcher->dispatch(Events::RUN_BEFORE, $event);
        /**
         * only for compatibility to old versions.
         */
        $event = new ConsoleEvent(new Command('dummy'), $input, $output);
        $this->dispatcher->dispatch('console.run.before', $event);
        $input = $this->config->checkConfigCommandAlias($input);
        if ($output instanceof ConsoleOutput) {
            $this->checkVarDir($output->getErrorOutput());
        }
        return parent::doRun($input, $output);
    }