s.at(n)
	iface, ok := printableValue(v)
	if !ok {
		s.errorf("can't print %s of type %s", n, v.Type())
	}
	_, err := fmt.Fprint(s.wr, iface)
	if err != nil {
		s.writeError(err)
	}
}

// printableValue returns the, possibly indirected, interface value inside v that
// is best for a call to formatted printer.
func printableValue(v reflect.Value) (any, bool) {

func evalArgs(args []any) string {
	ok := false
	var s string
	// Fast path for simple common case.
	if len(args) == 1 {
		s, ok = args[0].(string)
	}
	if !ok {
		for i, arg := range args {
			a, ok := printableValue(reflect.ValueOf(arg))
			if ok {
				args[i] = a
			} // else let fmt do its thing
		}
		s = fmt.Sprint(args...)
	}
	return s