code: public Iterable<Result<Upload>> listIncompleteUploads(String bucketName, String prefix)
            throws XmlPullParserException {
      return listIncompleteUploads(bucketName, prefix, true, true);
    }
docs: Lists incomplete uploads of objects in given bucket and prefix.
  
  @param bucketName Bucket name.
  @param prefix filters the list of uploads to include only those that start with prefix.
  
  @return an iterator of Upload.
  
  @throws XmlPullParserException      upon parsing response xml
  @see #listIncompleteUploads(String, String, boolean)