code: func TimestampFromEpoch(secondsSinceEpoch float64) Timestamp {
  	sec := int64(secondsSinceEpoch)
  	nsec := int64((secondsSinceEpoch - float64(sec) + 0.0000005) * 1000000000.0)
  	return Timestamp{time.Unix(sec, nsec).UTC()}
  }
docs: //
  // TimestampFromEpoch creates a new Timestamp from the specified time.Time
  //