{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"writeln!(out,"}]}
                    writeln!(out, "edition {}", root.edition)?;
                    writeln!(out, "triple {}", root.header.triple.tuple())?;
                    writeln!(out, "symbol_mangling_version {:?}", root.symbol_mangling_version)?;