'Scalar parameters with a scalar input should return a 1-D array with
size equal to the number of models.'

def test_scalar_parameters_scalar_input(self):

    t = TModel_1_1([1, 2], [10, 20], n_models=2)
    y = t(100)
    assert (np.shape(y) == (2,))
    assert np.all((y == [111, 122]))
