docs: @SafeVarargs
      private final boolean notifyOnLoad(@NonNull final KeyType key,
                                         @NonNull final ParamType... params) {
          boolean result = true;
  
          for (Listener<DataType, KeyType, ViewType, ParamType> listener : listeners) {
              result &= listener.onLoadData(this, key, params);
          }
  
          return result;
      }