code: public UploadPartResult uploadPart(UploadPartRequest request)
        throws AmazonClientException {
      try {
        UploadPartResult uploadPartResult = mClient.uploadPart(request);
        return uploadPartResult;
      } catch (AmazonClientException e) {
        throw e;
      }
    }
docs: Upload part of a multi-partition file.
  <i>Important: this call does not close any input stream in the request.</i>
  @param request request
  @return the result of the operation
  @throws AmazonClientException on problems