public function get_lti_advantage_services(&$mform) {
        // For each service add the label and get the array of configuration.
        $services = lti_get_services();
        $mform->addElement('header', 'services', get_string('services', 'lti'));
        foreach ($services as $service) {
            /** @var \mod_lti\local\ltiservice\service_base $service */
            $service->get_configuration_options($mform);
        }
    }