toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = {};
data['payerId'] = payerId;
data['orderId'] = orderId;
if (payer != null) {
data['payer'] = payer!.toJson();
}
if (cart != null) {
data['cart'] = cart!.toJson();
}
return data;
}