Complete the MultiPart Upload operation.  This method should
        be called when all parts of the file have been successfully
        uploaded to S3.

        :rtype: :class:`boto.s3.multipart.CompletedMultiPartUpload`
        :returns: An object representing the completed upload.

def complete_upload(self):
        """
        Complete the MultiPart Upload operation.  This method should
        be called when all parts of the file have been successfully
        uploaded to S3.

        :rtype: :class:`boto.s3.multipart.CompletedMultiPartUpload`
        :returns: An object representing the completed upload.
        """
        xml = self.to_xml()
        return self.bucket.complete_multipart_upload(self.key_name,
                                                     self.id, xml)