code: def multipart_upload_lister(bucket, key_marker='',
                              upload_id_marker='',
                              headers=None):
      
      more_results = True
      k = None
      while more_results:
          rs = bucket.get_all_multipart_uploads(key_marker=key_marker,
                                                upload_id_marker=upload_id_marker,
                                                headers=headers)
          for k in rs:
              yield k
          key_marker = rs.next_key_marker
          upload_id_marker = rs.next_upload_id_marker
          more_results= rs.is_truncated
docs: A generator function for listing multipart uploads in a bucket.