def METHOD_NAME():
    """test construction of audiogram"""
    levels = np.array([45, 45, 35, 45, 60, 65])
    frequencies = np.array([250, 500, 1000, 2000, 4000, 6000])
    audiogram = Audiogram(levels=levels, frequencies=frequencies)
    assert np.all(audiogram.levels == levels)
    assert np.all(audiogram.frequencies == frequencies)
    assert isinstance(audiogram.levels, np.ndarray)