webman 如何做为客户端去请求 sse 进行流响应

try {
            $response = $client->send($request, ['body' => $request->getBody(), 'stream' => true]);
            $body     = $response->getBody();
            while (!$body->eof()) {
                var_dump($body->read(1024));
                $return .= $body->read(1024);
            }
        } catch (GuzzleException $e) {
            return failJson($e->getMessage());
        }