toJson method
Implementation
Map<String, dynamic> toJson() => {
'name': name,
'cost': cost,
'quantity': quantity,
'productAdvertiseID': productAdvertiseID,
'productSoldOut': productSoldOut,
'productVariant': productVariant,
'categories':
categories?.map((key, value) => MapEntry(key.toString(), value)),
'ecommerceParameters': ecommerceParameters
?.map((key, value) => MapEntry(key.toString(), value))
};