{"ast_node_type":"variable","tokens":[{"end":41,"kind":"keyword","start":0,"text":"let"}]}
        let ln = self.add_live_node(lnk);
    fn add_live_node_for_node(&mut self, hir_id: HirId, lnk: LiveNodeKind) {
        self.live_node_map.insert(hir_id, ln);