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>>)