anchor.diff:    checkout: Checkout
   }
   
  +type CheckoutClearStoredMeta {
  +  errors: [Error!]
  +  checkout: Checkout
  +}
  +
  +type CheckoutClearStoredPrivateMeta {
  +  errors: [Error!]
  +  checkout: Checkout
  +}
  +
   type CheckoutComplete {
     errors: [Error!]
     order: Order
  
positive.code:   checkoutShippingAddressUpdate(checkoutId: ID!, shippingAddress: AddressInput!): CheckoutShippingAddressUpdate
    checkoutShippingMethodUpdate(checkoutId: ID, shippingMethodId: ID!): CheckoutShippingMethodUpdate
    checkoutUpdateVoucher(checkoutId: ID!, voucherCode: String): CheckoutUpdateVoucher
    passwordReset(email: String!): PasswordReset
    setPassword(id: ID!, input: SetPasswordInput!): SetPassword
    customerCreate(input: UserCreateInput!): CustomerCreate
  
negative.code:   voucherCode: String
    giftCards: [GiftCard]
    id: ID!
    privateMeta: [MetaStore]!
    meta: [MetaStore]!
    availableShippingMethods: [ShippingMethod]!
    availablePaymentGateways: [GatewaysEnum]!
    email: String!
  