toJson method
Implementation
Map<String, dynamic> toJson() => {
"name": reVal(this.name),
"qty": reVal(this.qty),
"id": reVal(this.id),
"price": reVal(this.price),
"cat1": reVal(this.cat1),
"cat2": reVal(this.cat2),
"cat3": reVal(this.cat3),
};