if err != nil {
		return
	}
	err = en.WriteUint64(z.MuxID)
	if err != nil {
		err = msgp.WrapError(err, "MuxID")
		return
	}
	err = en.WriteUint32(z.Seq)
	if err != nil {
		err = msgp.WrapError(err, "Seq")
		return
	}
	err = en.WriteUint32(z.DeadlineMS)
	if err != nil {
		err = msgp.WrapError(err, "DeadlineMS")
		return
	}
	err = en.WriteUint8(uint8(z.Handler))
	if err != nil {

	if err != nil {
		err = msgp.WrapError(err, "Dir")
		return
	}
	// write "Mode"
	err = en.Append(0xa4, 0x4d, 0x6f, 0x64, 0x65)
	if err != nil {
		return
	}
	err = en.WriteUint32(z.Mode)
	if err != nil {
		err = msgp.WrapError(err, "Mode")
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z *StatInfo) MarshalMsg(b []byte) (o []byte, err error) {