ModuleTrait.php

<?php
/**
 * @file
 * Contains Drupal\AppConsole\Command\Helper\ModuleTrait.
 */

namespace Drupal\AppConsole\Command\Helper;

use Symfony\Component\Console\Helper\HelperInterface;
use Symfony\Component\Console\Output\OutputInterface;

trait ModuleTrait
{
    /**
     * @param OutputInterface $output
     * @param HelperInterface $dialog
     * @return mixed
     */
    public function moduleQuestion(OutputInterface $output, HelperInterface $dialog)
    {
        $modules = $this->getModules();

        return $dialog->askAndValidate(
          $output,
          $dialog->getQuestion($this->trans('commands.common.questions.module'), ''),
          function ($module) {
              return $this->validateModuleExist($module);
          },
          false,
          '',
          $modules
        );
    }
}