"node":     nodeFmt,
		"synopsis": synopsisFmt,
		"indent":   indentFmt,
	})
	return template.Must(t.ParseFiles(filepath.Join(dataDir, filename)))
}

func nodeFmt(node any, fset *token.FileSet) string {
	var buf bytes.Buffer
	printer.Fprint(&buf, fset, node)
	return strings.ReplaceAll(strings.TrimSpace(buf.String()), "\n", "\n\t")
}

func synopsisFmt(s string) string {
	const n = 64
	if len(s) > n {