SKProductWrapper constructor
      
      SKProductWrapper({ 
    
- required String productIdentifier,
 - required String localizedTitle,
 - required String localizedDescription,
 - required SKPriceLocaleWrapper priceLocale,
 - String? subscriptionGroupIdentifier,
 - required String price,
 - SKProductSubscriptionPeriodWrapper? subscriptionPeriod,
 - SKProductDiscountWrapper? introductoryPrice,
 - List<
SKProductDiscountWrapper> discounts = const <SKProductDiscountWrapper>[], 
Creates an SKProductWrapper with the given product details.
Implementation
SKProductWrapper({
  required this.productIdentifier,
  required this.localizedTitle,
  required this.localizedDescription,
  required this.priceLocale,
  this.subscriptionGroupIdentifier,
  required this.price,
  this.subscriptionPeriod,
  this.introductoryPrice,
  this.discounts = const <SKProductDiscountWrapper>[],
});