code: @Override
    public @NotNull IntArrayAssert isEqualTo(@Nullable int[] expected) {
      if (Arrays.equals(actual, expected)) {
        return this;
      }
      failIfCustomMessageIsSet();
      throw failure(unexpectedNotEqual(actual, expected));
    }
docs: Verifies that the actual {@code int} array is equal to the given array. Array equality is checked by
  {@link Arrays#equals(int[], int[])}.
  
  @param expected the given array to compare the actual array to.
  @return this assertion object.
  @throws AssertionError if the actual {@code int} array is not equal to the given one.