Function casting_respects_dimensionality

tests/array.rs:461–467

()

#[test]
fn casting_respects_dimensionality() {
    Python::attach(|py| {
        let ob = PyArray::from_slice(py, &[1_i32, 2, 3]).into_any();

        assert!(ob.cast::<PyArray2<i32>>().is_err());
    });
}

#[test]
fn unbind_works() {