SchemaOrder constructor
      
      SchemaOrder({ 
    
- SchemaOffer? acceptedOffer,
 - SchemaPostalAddress? billingAddress,
 - dynamic broker,
 - String? confirmationNumber,
 - dynamic customer,
 - dynamic discount,
 - String? discountCode,
 - String? discountCurrency,
 - bool? isGift,
 - dynamic merchant,
 - String? orderDate,
 - SchemaParcelDelivery? orderDelivery,
 - String? orderNumber,
 - SchemaOrderStatus? orderStatus,
 - dynamic orderedItem,
 - SchemaInvoice? partOfInvoice,
 - String? paymentDue,
 - String? paymentDueDate,
 - SchemaPaymentMethod? paymentMethod,
 - String? paymentMethodId,
 - String? paymentUrl,
 - dynamic seller,
 - String? additionalType,
 - String? alternateName,
 - dynamic description,
 - String? disambiguatingDescription,
 - dynamic identifier,
 - dynamic image,
 - dynamic mainEntityOfPage,
 - String? name,
 - SchemaAction? potentialAction,
 - String? sameAs,
 - dynamic subjectOf,
 - String? url,
 
Create a new instance of SchemaOrder
Implementation
SchemaOrder({
  this.acceptedOffer,
  this.billingAddress,
  this.broker,
  this.confirmationNumber,
  this.customer,
  this.discount,
  this.discountCode,
  this.discountCurrency,
  this.isGift,
  this.merchant,
  this.orderDate,
  this.orderDelivery,
  this.orderNumber,
  this.orderStatus,
  this.orderedItem,
  this.partOfInvoice,
  this.paymentDue,
  this.paymentDueDate,
  this.paymentMethod,
  this.paymentMethodId,
  this.paymentUrl,
  this.seller,
  this.additionalType,
  this.alternateName,
  this.description,
  this.disambiguatingDescription,
  this.identifier,
  this.image,
  this.mainEntityOfPage,
  this.name,
  this.potentialAction,
  this.sameAs,
  this.subjectOf,
  this.url,
});