LineItem constructor
      
      LineItem({ 
    
    
- String? advertiserId,
- BiddingStrategy? bidStrategy,
- LineItemBudget? budget,
- String? campaignId,
- ConversionCountingConfig? conversionCounting,
- List<String> ? creativeIds,
- String? displayName,
- String? entityStatus,
- bool? excludeNewExchanges,
- LineItemFlight? flight,
- FrequencyCap? frequencyCap,
- String? insertionOrderId,
- IntegrationDetails? integrationDetails,
- String? lineItemId,
- String? lineItemType,
- MobileApp? mobileApp,
- String? name,
- Pacing? pacing,
- List<PartnerCost> ? partnerCosts,
- PartnerRevenueModel? partnerRevenueModel,
- String? reservationType,
- TargetingExpansionConfig? targetingExpansion,
- String? updateTime,
- List<String> ? warningMessages,
- YoutubeAndPartnersSettings? youtubeAndPartnersSettings,
Implementation
LineItem({
  this.advertiserId,
  this.bidStrategy,
  this.budget,
  this.campaignId,
  this.conversionCounting,
  this.creativeIds,
  this.displayName,
  this.entityStatus,
  this.excludeNewExchanges,
  this.flight,
  this.frequencyCap,
  this.insertionOrderId,
  this.integrationDetails,
  this.lineItemId,
  this.lineItemType,
  this.mobileApp,
  this.name,
  this.pacing,
  this.partnerCosts,
  this.partnerRevenueModel,
  this.reservationType,
  this.targetingExpansion,
  this.updateTime,
  this.warningMessages,
  this.youtubeAndPartnersSettings,
});