code: func (cm *CheckManager) checkBundleSearch(criteria string, filter map[string][]string) (*api.CheckBundle, error) {
  	search := api.SearchQueryType(criteria)
  	checkBundles, err := cm.apih.SearchCheckBundles(&search, &filter)
  	if err != nil {
  		return nil, err
  	}
  
  	if len(*checkBundles) == 0 {
  		return nil, nil // trigger creation of a new check
  	}
  
  	numActive := 0
  	checkID := -1
  
  	for idx, check := range *checkBundles {
  		if check.Status == statusActive {
  			numActive++
  			checkID = idx
  		}
  	}
  
  	if numActive > 1 {
  		return nil, fmt.Errorf("[ERROR] multiple check bundles match criteria %s", criteria)
  	}
  
  	bundle := (*checkBundles)[checkID]
  
  	return &bundle, nil
  }
docs: // Search for a check bundle given a predetermined set of criteria