return inputSet.keySet().containsAll(set);
      }
      return false;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof PowerSet) {
        PowerSet<?> that = (PowerSet<?>) obj;
        return inputSet.keySet().equals(that.inputSet.keySet());
      }
      return super.equals(obj);
    }

    @Override
    public int hashCode() {
      /*

  #   img: https://fastapi.tiangolo.com/img/sponsors/testdriven.svg
  - url: https://lambdatest.com/?utm_source=fastapi&utm_medium=partner&utm_campaign=sponsor&utm_term=opensource&utm_content=webpage
    title: LambdaTest, AI-Powered Cloud-based Test Orchestration Platform
    img: https://fastapi.tiangolo.com/img/sponsors/lambdatest.png
  - url: https://requestly.com/fastapi

- [Português (Brazilian Portuguese)](docs/pt-BR/README.md)
- [Français (French)](docs/fr/README.md)
- [Deutsch (German)](docs/de/README.md)
- [한국어 (Korean)](docs/ko/README.md)

## Powered By

* [Lasta Di](https://github.com/lastaflute/lasta-di "Lasta Di"): DI Container
* [LastaFlute](https://github.com/lastaflute/lastaflute "LastaFlute"): Web Framework

- [Español (Spanish)](../es/README.md)
- [Português (Brazilian Portuguese)](../pt-BR/README.md)
- [Français (French)](../fr/README.md)
- [Deutsch (German)](../de/README.md)
- [한국어 (Korean)](../ko/README.md)

## Powered By

* [Lasta Di](https://github.com/lastaflute/lasta-di "Lasta Di"): DIコンテナ
* [LastaFlute](https://github.com/lastaflute/lastaflute "LastaFlute"): Webフレームワーク