public function fetch_request($request) {
        throw new coding_exception('Sorry, this function has been deprecated in Moodle 2.8.8, 2.9.2 and 3.0. Use block_tag_youtube::get_service instead.');

        $c = new curl(array('cache' => true, 'module_cache'=>'tag_youtube'));
        $c->setopt(array('CURLOPT_TIMEOUT' => 3, 'CURLOPT_CONNECTTIMEOUT' => 3));

        $response = $c->get($request);

        $xml = new SimpleXMLElement($response);
        return $this->render_video_list($xml);
    }