/**
  * Returns description of method result value
  *
  * @return external_description
  * @since Moodle 2.0
  * @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
  * @see core_group_external::get_course_groups_returns()
  */
 public static function get_course_groups_returns()
 {
     return core_group_external::get_course_groups_returns();
 }