}

  // TODO(cpovirk): could something like this be used elsewhere, e.g., ReserializedListGenerator?
  static class ForwardingTestMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
      implements TestMapGenerator<K, V> {
    TestMapGenerator<K, V> delegate;

    ForwardingTestMapGenerator(TestMapGenerator<K, V> delegate) {
      this.delegate = delegate;
    }

    @Override