code: func (m *Time) ProtoTime() *ProtoTime {
  	if m == nil {
  		return &ProtoTime{}
  	}
  	return &ProtoTime{
  		Timestamp: Timestamp{
  			Seconds: m.Time.Unix(),
  			Nanos:   int32(m.Time.Nanosecond()),
  		},
  	}
  }
docs: // ProtoTime returns the Time as a new ProtoTime value.