PriceRuleValue union
The value of the price rule.
Possible types
[PriceRuleFixedAmountValue](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/pricerulefixedamountvalue)
[PriceRulePercentValue](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/pricerulepercentvalue)