{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"node.next_sibling().is_none()"}]}
                        node.next_sibling().is_none() && pair.prev_sibling().is_none(),
                    assert!(
                        "\nfloating curlies at {:?}\nfile:\n{}\nerror:\n{}\n",