subscribeProduct method
Implementation
Future<void> subscribeProduct({
required String productCode,
required int amount,
String? orderId,
}) {
throw UnimplementedError('subscribeProduct() has not been implemented.');
}
Future<void> subscribeProduct({
required String productCode,
required int amount,
String? orderId,
}) {
throw UnimplementedError('subscribeProduct() has not been implemented.');
}