{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
        // extend the lifetime of the borrow, then we wouldn't be able to do the insertion on a
        // Logically if a lookup succeeds we should just return it. Unfortunately returning it would
        // cache miss. This is a limitation of NLL and is fixed with Polonius. For now we do two