toJson method
Implementation
Map<String, dynamic> toJson() {
final result$data = <String, dynamic>{};
final l$coupon = coupon;
result$data['coupon'] = l$coupon;
final l$product = product;
result$data['product'] = l$product;
final l$order = order;
result$data['order'] = l$order;
final l$quantity = quantity;
result$data['quantity'] = l$quantity;
return result$data;
}