public function add($product, $count)
    {
        $array = json_decode('
            [{
                "product": "test-search",
                "count": "2"
            }, {
                "product": "example-3",
                "count": "2"
            }, {
                "product": "example-2",
                "count": "3"
            }, {
                "product": "example-1",
                "count": "4"
            }]
        ');
        $product = [
            'product' => $product,
            'count' => $count
        ];
        array_unshift($array, $product);
    }