anchor.diff:  
   # An ISO 8601 datetime
   scalar CommerceDateTime
  +
  +interface CommerceEventInterface {
  +  createdAt(
  +    format: String
  +
  +    # A tz database time zone, otherwise falls back to `X-TIMEZONE` header
  +    timezone: String
  +  ): String!
  +}
   
   # Autogenerated input type of FixFailedPayment
   input CommerceFixFailedPaymentInput {
  
positive.code: type CommerceOrderRequiresAction {
    # Data related to action needed
    actionData: CommerceOrderActionData!
  }
  
  enum CommerceOrderStateEnum {
  
negative.code:     # A tz database time zone, otherwise falls back to `X-TIMEZONE` header
      timezone: String
    ): String!
  }
  
  type CommerceOfferSubmittedEvent implements CommerceEventInterface {
    createdAt(
      format: String
  
      # A tz database time zone, otherwise falls back to `X-TIMEZONE` header
      timezone: String
    ): String!
    offer: CommerceOffer!
  }
  
  # Order
  