function update(SplSubject $client, http\Client\Request $request = null, StdClass $progress = null) {
echo "P";
if ($progress->info !== "prepare" && $client->getProgressInfo($request) != $progress) {
function update(SplSubject $client, http\Client\Request $request = null, StdClass $progress = null) {
echo "P";
if ($progress->info !== "prepare" && $client->getProgressInfo($request) != $progress) {