code: func (q *QueryFeedback) StoreRanges(ranges []*ranger.Range) {
  	q.Feedback = make([]Feedback, 0, len(ranges))
  	for _, ran := range ranges {
  		q.Feedback = append(q.Feedback, Feedback{&ran.LowVal[0], &ran.HighVal[0], 0, 0})
  	}
  }
docs: // StoreRanges stores the ranges for update.