Varaint object

[
            {
                "name": "ธรรมดา",
                "price": 199,
                "default": 1,
                "stock": 50,
                "unit": "Bottle" // if any
            },
            {
                "name": "ธรรมดา 2",
                "price": 199,
                "default": 0,
                "stock": 100,
                "unit": "Bottle" // if any
            }
        ]