{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"writeln!(out,"}]}
                    writeln!(out, "triple {}", root.header.triple.tuple())?;
                    writeln!(out, "proc_macro {:?}", root.proc_macro_data.is_some())?;
                    writeln!(out, "edition {}", root.edition)?;