// a Simple Client that return an AsyncResponse
$client = new class(HttpClient::create()) implements HttpClientInterface {
    use AsyncDecoratorTrait;
    private $client;
    public function __construct(HttpClientInterface $client)
    {
        $this->client = $client;
    }

    public function request(string $method, string $url, array $options = []): ResponseInterface
    {
        return new AsyncResponse($this->client, $method, $url, $options, null);
    }
};

$response = $client->request('GET', 'https://httpbin.org/status/200');

foreach ($client->stream($response) as $chunk) { // will end in a FirstChunk <== bug 
    foreach ($client->stream($response) as $chunk) { // This will correctly handle the LastChunk

    }
}