anchor.diff:    countries: [CountryDisplay]!
     currencies: [String]!
     defaultCurrency: String!
  -  availablePaymentGateways: [GatewaysEnum]!
     defaultCountry: CountryDisplay
     description: String
     domain: Domain!
  
positive.code:   applyOncePerOrder: Boolean!
    discountValueType: VoucherDiscountValueType!
    discountValue: Float!
    countries: VoucherCountries!
    minAmountSpent: Money
    products(before: String, after: String, first: Int, last: Int): ProductCountableConnection
    collections(before: String, after: String, first: Int, last: Int): CollectionCountableConnection
  
negative.code:   lines: [CheckoutLine]
    id: ID!
    availableShippingMethods: [ShippingMethod]
    availablePaymentGateways: [GatewaysEnum]!
    isShippingRequired: Boolean!
    shippingPrice: TaxedMoney
    subtotalPrice: TaxedMoney
  