{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"i.enumerate().fold(b,"}]}
            i.enumerate().fold(b, |mut b, (i, a)| {
            let b = i.next().map_or_else(String::new, |t| t.to_string());
                if tokens.len() > 2 && i == tokens.len() - 2 {