toJson method

@override Map<String, dynamic> toJson([ dynamic extra ])

Implementation

@override
Map<String, dynamic> toJson([dynamic extra]) {
  return {
    "@type": CONSTRUCTOR,
    "package_name": packageName,
    "store_product_id": storeProductId,
    "purchase_token": purchaseToken,
    "purpose": purpose.toJson(),
    "@extra": extra,
  };
}