@Contract(pure = true)
  public static @NotNull <T, V> ConcurrentMap<@NotNull T, @NotNull V> createConcurrentMap(@NotNull HashingStrategy<? super T> hashStrategy) {
    return new ConcurrentHashMap<>(hashStrategy);
  }
@Contract(pure = true)
  public static @NotNull <T, V> ConcurrentMap<@NotNull T, @NotNull V> createConcurrentMap(@NotNull HashingStrategy<? super T> hashStrategy)