使用workerman http异步流式请求,消息长了,progress会拿到一半消息,如何处理?

$options = [
    'max_conn_per_addr' => 128,
    'keepalive_timeout' => 15,
    'connect_timeout' => 30,
    'timeout' => 600,
];
$client = new Client($options);
$client->request($uri, [
    'method' => 'POST',
    'version' => '1.1',
    'data' => json_encode($data),
    'headers' => [
        'Authorization' => "Bearer {$appKey}",
        'X-DashScope-SSE' => 'enable',
    ],
    'progress' => function ($buffer) use ($onMessage) {
        $this->debug && $this->stdoutLogger->info($buffer);
    },
]);

...内，表明�