{"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"let"}]}
            let owner = self.current_hir_id_owner;
        let res: Result<Res, ()> = res.apply_id(|id| {
            let local_id = self.ident_and_label_to_local_id.get(&id).copied().ok_or(())?;