DiscountCustomerBuysValue union
The prerequisite quantity required for the discount to be applicable.
Possible types
[DiscountPurchaseAmount](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/discountpurchaseamount)
[DiscountQuantity](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/discountquantity)