if err != nil {
		return
	}
	err = en.WriteFloat64(z.CurrentBandwidthInBytesPerSecond)
	if err != nil {
		err = msgp.WrapError(err, "CurrentBandwidthInBytesPerSecond")
		return
	}
	// write "lt"
	err = en.Append(0xa2, 0x6c, 0x74)
	if err != nil {
		return
	}
	if z.XferRateLrg == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {