Drupal 8: Get users by permission

gistfile1.php

// Get administrators.
        $roles = user_role_names(FALSE, 'administer reservable_list_form petitions');
        $rids = array_keys($roles);

        $uids = Drupal::service('entity_type.manager')->getStorage('user')->getQuery()
          ->condition('roles', $rids, 'IN')
          ->execute();
        $users = \Drupal::entityTypeManager()->getStorage('user')->loadMultiple($uids);