Auth_OpenID_PAPE_Request::getExtensionArgs PHP Method

    function getExtensionArgs()
    {
        $ns_args = array('preferred_auth_policies' => implode(' ', $this->preferred_auth_policies));
        if ($this->max_auth_age !== null) {
            $ns_args['max_auth_age'] = strval($this->max_auth_age);
        }
        return $ns_args;
    }