anchor.diff:      return groups;
     }
   
  -  bool _persistBroadcastData(Experiment experiment, List<ExperimentGroup> groups) {
  -    // TODO
  -    return false;
  -  }
  -
     List<ExperimentGroup> _groupsListeningForAccessibilityEvents(Experiment experiment, TriggerEvent event) {
       final groups = <ExperimentGroup>[];
   
  
positive.code:     }
  
      return groups;
    }
  
    bool _persistAccessibilityData(Experiment experiment, List<ExperimentGroup> groups) {
      // TODO
      return false;
    }
  
    List _shouldTriggerBy(Experiment experiment, TriggerEvent event) {
  
negative.code:         }
        }
      }
    }
  
    List<ExperimentGroup> _groupsListening(Experiment experiment, TriggerEvent event) {
  