{"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"let"}]}
        let current_trait_map = std::mem::take(&mut self.trait_map);
        let current_node_id_to_local_id = std::mem::take(&mut self.node_id_to_local_id);
        let current_owner = std::mem::replace(&mut self.current_hir_id_owner, owner_id);