toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['campaignId'] = this.campaignId;
data['campaignName'] = this.campaignName;
data['startDate'] = this.startDate;
data['endDate'] = this.endDate;
data['vendor'] = this.vendor;
return data;
}