question: void startEventTracker ( ) { List < EventTrackingService > services = getEnabledServicesForType ( EventTrackingService . class ) ; if ( services != null && ! services . isEmpty ( ) ) { if ( eventTracker == null ) { eventTracker = new EventTracker ( context , services , foamApiKeys . wifiOnly ( ) ) ; } if ( ! eventTracker . isRunning ( ) ) { eventTracker . start ( ) ; } } }
target:  Start Foam event tracker.  Checks for duplicate restarts.