Method is_current

crates/vm/src/stdlib/itertools.rs:555–560

(&self, grouper: &Py<PyItertoolsGrouper>)

    impl GroupByState {
        fn is_current(&self, grouper: &Py<PyItertoolsGrouper>) -> bool {
            self.grouper
                .as_ref()
                .and_then(|g| g.upgrade())
                .is_some_and(|current_grouper| grouper.is(&current_grouper))
        }
    }

    #[pyattr]