code: public Future<MapDataOverview> getMaps(String version, String locale) {
          return new DummyFuture<>(handler.getMaps(version, locale));
      }
docs: <p>
  Retrieve map information
  </p>
  This method does not count towards the rate limit
  
  @param version The data dragon version.
  @param locale The locale information.
  
  @return The list of all available maps.
  @see <a href="https://developer.riotgames.com/api/methods#!/931">The official api documentation</a>