Return Value
            The values indicating how many features are stored at any given time.
            
| Exception | Description | 
|---|---|
| ArcGIS.Core.CalledOnWrongThreadException | This method or property must be called within the lambda passed to QueuedTask.Run. | 
When RealtimeFeatureClassDefinition.HasTrackIDField is true, it represents total number of features within each track.
When RealtimeFeatureClassDefinition.HasTrackIDField is false, it represents total number of features.
Target Platforms: Windows 11, Windows 10, Windows 8.1