InsertionOrder constructor
      
      InsertionOrder({ 
    
    
- String? advertiserId,
- BiddingStrategy? bidStrategy,
- InsertionOrderBudget? budget,
- String? campaignId,
- String? displayName,
- String? entityStatus,
- FrequencyCap? frequencyCap,
- String? insertionOrderId,
- String? insertionOrderType,
- IntegrationDetails? integrationDetails,
- Kpi? kpi,
- String? name,
- String? optimizationObjective,
- Pacing? pacing,
- List<PartnerCost> ? partnerCosts,
- String? reservationType,
- String? updateTime,
Implementation
InsertionOrder({
  this.advertiserId,
  this.bidStrategy,
  this.budget,
  this.campaignId,
  this.displayName,
  this.entityStatus,
  this.frequencyCap,
  this.insertionOrderId,
  this.insertionOrderType,
  this.integrationDetails,
  this.kpi,
  this.name,
  this.optimizationObjective,
  this.pacing,
  this.partnerCosts,
  this.reservationType,
  this.updateTime,
});