human
I wrote the below code

    def f(x):
        return (x ** 2)
    y = discretize_model(f, ((-5), 6))
    assert_allclose(y, (np.arange((-5), 6) ** 2))

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def test_discretize_callable_1d():