def METHOD_NAME():
    lats = np.array([-90, 0, 0, 90])
    lons = np.array([-90, 0, 90, 180])
    hgts = np.array([-10, 0, 10, 1000])
    c = Conventional()
    with pytest.raises(ValueError):
        c(np.ones(4))
    c.setPoints(lats, lons, hgts)
    with pytest.raises(ValueError):
        c(np.ones(4))