code: func complete(s *awsxray.Segment, status int) {
  	switch {
  	case status >= 500:
  		s.Fault = true
  	case status >= 400:
  		s.Error = true
  	}
  	s.HTTP.Response.Status = status
  	s.EndTime = float64(time.Now().Truncate(time.Millisecond).UnixNano()) / 1e9
  }
docs: // complete sets the response status and end time