toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['walletId'] = this.walletId;
data['amount'] = this.amount;
data['username'] = this.username;
data['date'] = this.date;
data['virtualCardNumber'] = this.virtualCardNumber;
data['reason'] = this.reason;
data['vendor'] = this.vendor;
return data;
}