<?php

namespace Drupal\my_module\Commands;

use Drush\Commands\DrushCommands;

/**
 * A Drush commandfile.
 *
 * In addition to this file, you need a drush.services.yml
 * in root of your module, and a composer.json file that provides the name
 * of the services file to use.
 *
 * See these files for an example of injecting Drupal services:
 *   - http://cgit.drupalcode.org/devel/tree/src/Commands/DevelCommands.php
 *   - http://cgit.drupalcode.org/devel/tree/drush.services.yml
 */
class CustomCommands extends DrushCommands {

  /**
   * My custom command.
   *
   * @command custom-command
   */
  public function custom() {
	  $this->output()->writeln('Hello World!');
  }

}