}

      @Override
      boolean isPartialView() {
        return true;
      }

      // redeclare to help optimizers with b/310253115
      @SuppressWarnings("RedundantOverride")
      @J2ktIncompatible // serialization
      @Override
      @GwtIncompatible // serialization
      Object writeReplace() {
        return super.writeReplace();
      }
    };
  }