if err != nil {
		return
	}
	err = en.WriteTime(z.CreatedAfter)
	if err != nil {
		err = msgp.WrapError(err, "CreatedAfter")
		return
	}
	// write "CreatedBefore"
	err = en.Append(0xad, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x42, 0x65, 0x66, 0x6f, 0x72, 0x65)
	if err != nil {
		return
	}
	err = en.WriteTime(z.CreatedBefore)
	if err != nil {