找不到类创建 Blob 选项

我正在尝试使用 Azure CDN 服务，我在以下代码中遇到了此错误，我已经搜索了所有地方，但我没有在互联网或官方 Azure Git 呼吸系统或他们的网站上找到 CreateBlobOption 类，帮助我，我被困住了

<?php
    require_once __DIR__.'/vendor/autoload.php';
    use WindowsAzure'Common'ServicesBuilder;
    use WindowsAzure'Common'ServiceException;

    $connectionString = 'DefaultEndpointsProtocol=http;AccountName=myaccount;AccountKey=my_key';
    $blobRestProxy = ServicesBuilder::getInstance()->createBlobService($connectionString);
    $content = fopen('my_file.jpg','r');
    $blob_name = 'my_file.jpg';
    $options = new CreateBlobOptions();
    $options->setBlobContentType('image/jpeg');
    try
    {
        $blobRestProxy->createBlockBlob("images", $blob_name, $content,$options);
    }
    catch(ServiceException $e)
    {
        $code = $e->getCode();
        $error_message = $e->getMessage();
        echo $code.": ".$error_message."<br />";
    }