cforge-2.0.x-dev/modules/cforge_broadcast/src/Plugin/QueueWorker/AutoNews.php

<?php

namespace Drupal\cforge_broadcast\Plugin\QueueWorker;

use Drupal\Core\Queue\QueueWorkerBase;
use Drupal\user\Entity\User;

/**
 * Updates a feed's items.
 *
 * @QueueWorker(
 *   id = "cforge_autonews",
 *   title = @Translation("Cforge auto-news"),
 *   cron = {"time" = 60}
 * )
 */
class AutoNews extends QueueWorkerBase {

  /**
   * {@inheritdoc}
   */
  public function processItem($data) {
    $account = User::load($data['uid']);
    $params = [
      'user' => $account,
      'since' => $data['since'],
    ];

    \Drupal::service('plugin.manager.mail')
      ->mail('cforge_broadcast', 'autonews', $account->mail, $account->getPreferredLangcode(), $params);

  }

}