if err != nil {
		return
	}
	err = en.WriteTime(z.StartTime)
	if err != nil {
		err = msgp.WrapError(err, "StartTime")
		return
	}
	// write "EndTime"
	err = en.Append(0xa7, 0x45, 0x6e, 0x64, 0x54, 0x69, 0x6d, 0x65)
	if err != nil {
		return
	}
	err = en.WriteTime(z.EndTime)
	if err != nil {
		err = msgp.WrapError(err, "EndTime")
		return
	}

			return
		}
	}
	// write "Timestamp"
	err = en.Append(0xa9, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70)
	if err != nil {
		return
	}
	err = en.WriteTime(z.Timestamp)
	if err != nil {
		err = msgp.WrapError(err, "Timestamp")
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler