Auth_OpenID_SuccessResponse::getSignedNS PHP Method

    function getSignedNS($ns_uri)
    {
        $args = array();
        $msg_args = $this->message->getArgs($ns_uri);
        if (Auth_OpenID::isFailure($msg_args)) {
            return null;
        }
        foreach ($msg_args as $key => $value) {
            if (!$this->isSigned($ns_uri, $key)) {
                unset($msg_args[$key]);
            }
        }
        return $msg_args;
    }