code: public static <T, U> ToLongBiFunction<T, U> toLongBiFunction(CheckedToLongBiFunction<T, U> function) {
          return Unchecked.toLongBiFunction(function, Unchecked.RETHROW_ALL);
      }
docs: Wrap a {@link CheckedToLongBiFunction} in a {@link ToLongBiFunction}.