Dart APIunself_monitoringAnalyticServicetrackEvent trackEvent method Null safety void trackEvent(String eventName ) Implementation void trackEvent(String eventName) => _rudder.track(eventName); unself_monitoring unself_monitoring AnalyticService trackEvent method AnalyticService class Constructors AnalyticService Properties context hashCode runtimeType Methods getCurrentContext noSuchMethod toString trackEvent trackScreen Operators operator ==