public static void ClassCleanup()
        {
            // Clean up channel
            var result = _ossClient.ListLiveChannel(new ListLiveChannelRequest(_bucketName));

            foreach (var ch in result.LiveChannels)
            {
                _ossClient.DeleteLiveChannel(new DeleteLiveChannelRequest(_bucketName, ch.Name));
            }

            OssTestUtils.CleanBucket(_ossClient, _bucketName);
        }