code: public static <T, E extends Exception> UnaryOperator<T> sneaked(
        SneakyUnaryOperator<T, E> unaryOperator) {
      return t -> {
        @SuppressWarnings("unchecked")
        SneakyUnaryOperator<T, RuntimeException> castedUnaryOperator =
            (SneakyUnaryOperator<T, RuntimeException>) unaryOperator;
        return castedUnaryOperator.apply(t);
      };
    }
docs: Sneaky throws a UnaryOperator lambda.
  
  @param unaryOperator UnaryOperator that can throw an exception
  @param <T> type of unaryOperator's argument and returned value
  @return a UnaryOperator as defined in java.util.function