{"ast_node_type":"variable","tokens":[{"end":85,"kind":"keyword","start":0,"text":"let"}]}
            let total_range: Range<usize> = l_range.start().into()..range_end.into();
            let result = format!("{pre_str}{i_str}{post_str}\x1b[0m\x1b[K");
            (total_range, result)