{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"!visited.get_or_init(||"}]}
            !visited.get_or_init(|| state.visited.lock()).contains(k)
        mentioned_items.items.retain(|k, _| {
                && mentioned.get_mut_or_init(|| state.mentioned.lock_mut()).insert(*k)