Identifies the type of a router event.
enum EventType { NavigationStart: EventType.NavigationStart; NavigationEnd: EventType.NavigationEnd; NavigationCancel: EventType.NavigationCancel; NavigationError: EventType.NavigationError; RoutesRecognized: EventType.RoutesRecognized; ResolveStart: EventType.ResolveStart; ResolveEnd: EventType.ResolveEnd; GuardsCheckStart: EventType.GuardsCheckStart; GuardsCheckEnd: EventType.GuardsCheckEnd; RouteConfigLoadStart: EventType.RouteConfigLoadStart; RouteConfigLoadEnd: EventType.RouteConfigLoadEnd; ChildActivationStart: EventType.ChildActivationStart; ChildActivationEnd: EventType.ChildActivationEnd; ActivationStart: EventType.ActivationStart; ActivationEnd: EventType.ActivationEnd; Scroll: EventType.Scroll; NavigationSkipped: EventType.NavigationSkipped;}