def METHOD_NAME():
    p = datasets.PyCMDS.wm_w2_w1_001
    data = wt.data.from_PyCMDS(p)
    data.transform("w1-wm", "w2", "w1")
    p = os.path.join(here, "expressions")
    p = data.save(p)
    new = wt.open(p)
    assert data.axis_expressions == new.axis_expressions
    data.close()
    new.close()
    os.remove(p)