InAppProduct constructor
      
      InAppProduct({ 
    
    
- String? defaultLanguage,
 - Price? defaultPrice,
 - String? gracePeriod,
 - Map<
String, InAppProductListing> ? listings, - ManagedProductTaxAndComplianceSettings? managedProductTaxesAndComplianceSettings,
 - String? packageName,
 - Map<
String, Price> ? prices, - String? purchaseType,
 - String? sku,
 - String? status,
 - String? subscriptionPeriod,
 - SubscriptionTaxAndComplianceSettings? subscriptionTaxesAndComplianceSettings,
 - String? trialPeriod,
 
Implementation
InAppProduct({
  this.defaultLanguage,
  this.defaultPrice,
  this.gracePeriod,
  this.listings,
  this.managedProductTaxesAndComplianceSettings,
  this.packageName,
  this.prices,
  this.purchaseType,
  this.sku,
  this.status,
  this.subscriptionPeriod,
  this.subscriptionTaxesAndComplianceSettings,
  this.trialPeriod,
});