function extensionResponse($namespace_uri, $require_signed)
    {
        if ($require_signed) {
            return $this->getSignedNS($namespace_uri);
        } else {
            return $this->message->getArgs($namespace_uri);
        }
    }
function extensionResponse($namespace_uri, $require_signed)
    {
        if ($require_signed) {
            return $this->getSignedNS($namespace_uri);
        } else {
            return $this->message->getArgs($namespace_uri);
        }
    }
function extensionResponse ( $ namespace_uri , $ require_signed ) { if ( $ require_signed ) { return $ this -> getSignedNS ( $ namespace_uri ) ; } else { return $ this -> message -> getArgs ( $ namespace_uri ) ; } }
Extract signed extension data from the server's response.

@param $namespace_uri
@param $require_signed
@return array|Auth_OpenID_FailureResponse|null|string
@internal param string $prefix The extension namespace from which to
extract the extension data.
Extract signed extension data from the server s response .