如何使用MS Graph PHP SDK V2下载文件

在V1中，我可以

$this->graph->createRequest('GET', '/drives/' . $driveId . '/items/' . $itemId . '/content')->download($path);

在V2中如何做到这一点？

我认为这已经很接近了，但我想不出如何在$Response中写入文件.

$tokenRequestContext = new \Microsoft\Kiota\Authentication\Oauth\ClientCredentialContext(
    config('graphapi.azure_tenant_id'),
    config('graphapi.azure_client_id'),
    config('graphapi.azure_client_secret')
);

$graphServiceClient = new \Microsoft\Graph\GraphServiceClient($tokenRequestContext);

$response  = $graphServiceClient->drives()
    ->byDriveId(config('graphapi.attachments_drive_id'))
    ->items()
    ->byDriveItemId(<drive_item_id>)
    ->content()
    ->get();

编辑:

$Response返回promise :

object(Http\Promise\FulfilledPromise)#5993 (1) {
  ["result":"Http\Promise\FulfilledPromise":private]=>
  object(GuzzleHttp\Psr7\Stream)#6066 (7) {
    ["stream":"GuzzleHttp\Psr7\Stream":private]=>
    resource(965) of type (stream)
    ["size":"GuzzleHttp\Psr7\Stream":private]=>
    NULL
    ["seekable":"GuzzleHttp\Psr7\Stream":private]=>
    bool(true)
    ["readable":"GuzzleHttp\Psr7\Stream":private]=>
    bool(true)
    ["writable":"GuzzleHttp\Psr7\Stream":private]=>
    bool(true)
    ["uri":"GuzzleHttp\Psr7\Stream":private]=>
    string(10) "php://temp"
    ["customMetadata":"GuzzleHttp\Psr7\Stream":private]=>
    array(0) {
    }
  }
}

因此，我将代码更改为:

$promise  = $graphServiceClient->drives()
    ->byDriveId(config('graphapi.attachments_drive_id'))
    ->items()
    ->byDriveItemId(<drive_item_id>)
    ->content()
    ->get();

$promise->then(
    function ($response) {
        $fileContent = $response->getBody()->getContents();
        file_put_contents('test.txt', $fileContent);
    },
    function ($exception) {
        echo "Error: " . $exception->getMessage();
    }
);

但我收到错误:对未定义的方法GuzzleHttp\Psr7\Stream::getBody()的错误调用.