code: def list_multipart_uploads(self, key_marker='',
                                 upload_id_marker='',
                                 headers=None):
          
          return MultiPartUploadListResultSet(self, key_marker,
                                              upload_id_marker,
                                              headers)
docs: List multipart upload objects within a bucket.  This returns an
          instance of an MultiPartUploadListResultSet that automatically
          handles all of the result paging, etc. from S3.  You just need
          to keep iterating until there are no more results.
          
          :type marker: string
          :param marker: The "marker" of where you are in the result set
          
          :rtype: :class:`boto.s3.bucketlistresultset.BucketListResultSet`
          :return: an instance of a BucketListResultSet that handles paging, etc