anchor.diff:  
     /// Loads the data from Youtube and caches locally.
     Future<void> update() async {
  +    /*
       await retry(() async {
         final apiKey = Platform.environment['YOUTUBE_API_KEY'] ??
             await secretBackend.lookup(SecretKey.youtubeApiKey);
  
positive.code:         selected.add(selectable.removeAt(random.nextInt(selectable.length)));
        }
      }
      return selected;
    }
  
    /// Cancel timer and free resources.
  
negative.code:     int count = 4,
      math.Random random,
    }) {
      return const <PkgOfWeekVideo>[];
      /*
      if (_packageOfWeekVideos == null) {
        return const <PkgOfWeekVideo>[];
      }
  