/**
* Initialises the renderer instance.
* @param moodle_page $page
* @param string $target
* @throws coding_exception
*/
public function __construct(moodle_page $page, $target) {
if ($target !== RENDERER_TARGET_MAINTENANCE || $page->pagelayout !== 'maintenance') {
throw new coding_exception('Invalid request for the maintenance renderer.');
}
parent::__construct($page, $target);
}
