PlatformNavigation

    
      abstract class PlatformNavigation implements Navigation {  abstract entries(): NavigationHistoryEntry[];  abstract currentEntry: any;  abstract updateCurrentEntry(options: NavigationUpdateCurrentEntryOptions): void;  abstract transition: any;  abstract canGoBack: boolean;  abstract canGoForward: boolean;  abstract navigate(url: string, options?: any): NavigationResult;  abstract reload(options?: any): NavigationResult;  abstract traverseTo(key: string, options?: any): NavigationResult;  abstract back(options?: any): NavigationResult;  abstract forward(options?: any): NavigationResult;  abstract onnavigate: ((this: Navigation, ev: NavigateEvent) => any) | null;  abstract onnavigatesuccess: ((this: Navigation, ev: Event) => any) | null;  abstract onnavigateerror: ((this: Navigation, ev: ErrorEvent) => any) | null;  abstract oncurrententrychange: ((this: Navigation, ev: NavigationCurrentEntryChangeEvent) => any) | null;  abstract addEventListener(type: unknown, listener: unknown, options?: unknown): void;  abstract removeEventListener(type: unknown, listener: unknown, options?: unknown): void;  abstract dispatchEvent(event: Event): boolean;}