Method traverse

crates/vm/src/protocol/iter.rs:19–21

(&self, tracer_fn: &mut TraverseFn<'_>)

unsafe impl<O: Borrow<PyObject>> Traverse for PyIter<O> {
    fn traverse(&self, tracer_fn: &mut TraverseFn<'_>) {
        self.0.borrow().traverse(tracer_fn);
    }
}

impl PyIter<PyObjectRef> {