定价值-PricingValue union
定价对象的价格值。
可能的类型
[MoneyV2](https://shopify.dev/docs/admin-api/graphql/reference/common-objects/moneyv2)
[PricingPercentageValue](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/pricingpercentagevalue)