{"ast_node_type":"variable","tokens":[{"end":82,"kind":"keyword","start":0,"text":"let"}]}
        let (eol_txt, rest) = parse_to_newline(&working[(idx + end_pat.len())..]);
    for idx in (0..working.len()).filter(|idx| working[*idx..].starts_with(&end_pat)) {
        if !eol_txt.iter().any(u8::is_ascii_whitespace) {