internal void RaiseNavigating(Portable.NavigatingEventArgs e) => Navigating?.Invoke(this, e);
internal void RaiseNavigated(Portable.NavigatedEventArgs e) => Navigated?.Invoke(this, e);
internal void RaiseNavigating(Portable.NavigatingEventArgs e) => Navigating?.Invoke(this, e);
internal void RaiseNavigated(Portable.NavigatedEventArgs e) => Navigated?.Invoke(this, e);