toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (billingAccount != null) 'billingAccount': billingAccount!,
if (offer != null) 'offer': offer!,
if (parameters != null) 'parameters': parameters!,
if (purchaseOrderId != null) 'purchaseOrderId': purchaseOrderId!,
if (requestId != null) 'requestId': requestId!,
};