{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"format_to!(error_msg,"}]}
            format_to!(error_msg, "\x1b[44mleft change:\x1b[0m  {l:?} {l}\n");
        } else {
            let range_end = if l_range.contains_range(r_range) {