public void Exists_Test()
        {
            var tenantId = Guid.NewGuid();

            using (_currentTenant.Change(tenantId))
            {
                var bu            = _calculator.Calculate(GetArgs("my-container", "my-blob"));
                var containerName = "wei";
                var blobName      = "123";
                var tt            = new BlobProviderExistsArgs(
                    containerName,
                    new BlobContainerConfiguration().UseTencentCloudCos(cos => {
                    cos.AppId         = "";
                    cos.SecretId      = "";
                    cos.SecretKey     = "";
                    cos.ContainerName = "wei";
                    cos.Region        = EnumUtils.GetValue(CosRegion.AP_Guangzhou);
                }),
                    blobName
                    );
                var result = _blob.ExistsAsync(tt).GetAwaiter().GetResult();;
                Assert.False(result);
            }
        }