\http\client\Request - set cookies from http response

I use pecl_http 2.xx library to do HTTP requests from PHP scripts.
The problem is that i cannot correctly re-send cookies supplied by server on a new response.

My code:

$request = new \http\client\Request("GET", "http://1", $custom_headers);
$client = new \http\client();
$client->enqueue($request)->send();
$re = $client->getResponse($request);

$cookies = $re->getCookies();

$request = new \http\client\Request("GET", "http://2", $custom_headers);
$client = new \http\client();
$client->enqueue($request)->send();
$re = $client->getResponse($request);

I have tried passing cookies as array to setOptions() (cookies key), using \http\client\request::setCookies() but nothing seems to work - cookies are not sent with second request.

I have also tried using one client instance for two requests but this did not help, cookies are not re-sent.

source code of this library seem to be bad-written and not pretty to solve my problem.

Documentation lacks samples on keeping cookies between requests.

Thanks for suggestions