{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"Some((_,"}]}
            Some((_, length)) => TokenTree::token_alone(
        MetaVarExpr::Len(depth) => match tscx.repeats.iter().nth_back(depth) {
                TokenKind::lit(token::Integer, sym::integer(*length), None),