Function f

tests/test_function.rs:9–11

(_py: Python)

    static CALL_COUNT: atomic::AtomicUsize = atomic::AtomicUsize::new(0);

    fn f(_py: Python) -> PyResult<usize> {
        Ok(CALL_COUNT.fetch_add(1, Relaxed))
    }

    let gil = Python::acquire_gil();
    let py = gil.python();