How to use the tellurium.sedml.data.datahandler.DataDescriptionParser.parse function in tellurium

print('parseDataDescriptions:', sedml_path)
    # load sedml document
    assert os.path.exists(sedml_path)

    doc_sedml = libsedml.readSedMLFromFile(sedml_path)
    SEDMLTools.checkSEDMLDocument(doc_sedml)

    # parse DataDescriptions
    list_dd = doc_sedml.getListOfDataDescriptions()
    # print(list_dd)
    # print(len(list_dd))

    assert len(list_dd) > 0

    for dd in list_dd:
        data_sources = DataDescriptionParser.parse(dd, workingDir=BASE_DIR)
        assert data_sources is not None
        assert type(data_sources) == dict
        assert len(data_sources) > 0
    return data_sources