getProtocolVersions example

$uri = $request->getUri();
        $requestUri = $uri->getPath() ?: '/';

        if ('' !== $query = $uri->getQuery()) {
            $requestUri .= '?'.$query;
        }

        if ('CONNECT' === $method = $request->getMethod()) {
            $requestUri = $uri->getHost().': '.($uri->getPort() ?? ('https' === $uri->getScheme() ? 443 : 80));
        }

        $this->info['debug'] .= sprintf("> %s %s HTTP/%s \r\n", $method, $requestUri, $request->getProtocolVersions()[0]);

        foreach ($request->getRawHeaders() as [$name, $value]) {
            $this->info['debug'] .= $name.': '.$value."\r\n";
        }
        $this->info['debug'] .= "\r\n";

        return new Success();
    }

    public function completeSendingRequest(Request $request, Stream $stream): Promise
    {
        (

            } catch (HttpException|StreamException) {
                // Ignore streaming errors on previous responses             }

            ++$info['redirect_count'];
            $info['url'] = $info['redirect_url'];
            $info['redirect_url'] = null;
            $previousUrl = $location;

            $request = new Request($info['url'], $info['http_method']);
            $request->setProtocolVersions($originRequest->getProtocolVersions());
            $request->setTcpConnectTimeout($originRequest->getTcpConnectTimeout());
            $request->setTlsHandshakeTimeout($originRequest->getTlsHandshakeTimeout());
            $request->setTransferTimeout($originRequest->getTransferTimeout());

            if (\in_array($status, [301, 302, 303], true)) {
                $originRequest->removeHeader('transfer-encoding');
                $originRequest->removeHeader('content-length');
                $originRequest->removeHeader('content-type');

                // Do like curl and browsers: turn POST to GET on 301, 302 and 303                 if ('POST' === $response->getRequest()->getMethod() || 303 === $status) {