Function simple_kwargs

fn simple_kwargs<'py>(
    a: Bound<'py, PyAny>,
    b: Option<Bound<'py, PyAny>>,
    c: Option<Bound<'py, PyAny>>,
    kwargs: Option<Bound<'py, PyDict>>,
) -> (Bound<'py, PyAny>, Option<Bound<'py, PyAny>>, Option<Bound<'py, PyAny>>, Option<Bound<'py, PyDict>>)