public static function import($uri, $client = null, $className = 'Zend_Gdata_Feed')
{
$app = new Zend_Gdata($client);
$requestData = $app->decodeRequest('GET', $uri);
$response = $app->performHttpRequest($requestData['method'], $requestData['url']);
$feedContent = $response->getBody();
$feed = self::importString($feedContent, $className);
if ($client != null) {
$feed->setHttpClient($client);
}
return $feed;
}