{"ast_node_type":"variable","tokens":[{"end":88,"kind":"keyword","start":0,"text":"let"}]}
        let (use_tree, _) = lower_use_tree(self.db, use_item.use_tree()?, &mut |range| {
        let ast_id = self.source_ast_id_map.ast_id(use_item);
            self.span_map().span_for_range(range).ctx