if err != nil {
		return
	}
	err = en.WriteBool(z.Recursive)
	if err != nil {
		err = msgp.WrapError(err, "Recursive")
		return
	}
	// write "i"
	err = en.Append(0xa1, 0x69)
	if err != nil {
		return
	}
	err = en.WriteBool(z.Immediate)
	if err != nil {
		err = msgp.WrapError(err, "Immediate")
		return
	}
	// write "u"
	err = en.Append(0xa1, 0x75)
	if err != nil {
		return