code: func sortedResponses(input map[int]spec.Response) responses {
  	var res responses
  	for k, v := range input {
  		if k > 0 {
  			res = append(res, respSort{k, v})
  		}
  	}
  	sort.Sort(res)
  	return res
  }
docs: // sortedResponses produces a sorted list of responses.
  // TODO: this is redundant with the definition given in struct.go