.net 带有UseSignatureVersion4选项的AWS GetBucketLocationRequest

如何使用UseSignatureVersion4全局选项请求存储桶位置？事实上，我需要创建一个具有指定区域端点的AmazonS3Client实例。但是，例如，如果我有一个位于“us-west-2”区域的bucket，并使用“us-east-1”区域选项创建默认客户端AmazonS3Client，我会得到“授权标头格式错误；区域“us-east-1”错误；预期为“us-west-2”。错误”。但我事先不知道bucket的位置

AWSConfigs.S3Config.UseSignatureVersion4 = true;
string location;

using (var tmpS3Client = new AmazonS3Client(accessInfo.AccessKey, accessInfo.SecretKey, RegionEndpoint.USEast1))
{
  var bucketLocationRequest = new GetBucketLocationRequest
  {
    BucketName = config.BucketName
  };
  GetBucketLocationResponse bucketLocationResponse = tmpS3Client.GetBucketLocation(bucketLocationRequest);
  location = bucketLocationResponse.Location.Value;
}