{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"data.sort_unstable_by(|(k1,"}]}
        data.sort_unstable_by(|(k1, _), (k2, _)| k1.cmp(k2));
        data.dedup_by(|(k1, _), (k2, _)| k1 == k2);