public function dataProviderForAddMulti() { return [[[3, 5, 7, 9], [1, 2, 3, 4], [2, 3, 4, 5]], [[7, 8, 9, 10], [1, 2, 3, 4], [6, 6, 6, 6]], [[6, 7, 9, 10], [1, 2, 3, 4], [2, 2, 2, 2], [3, 3, 4, 4]]]; }