import { IContext, IExtension } from "@robotlegsjs/core";
/**
 * This extension install an automatic Scene Manager Observer
 */
export declare class SceneManagerObserverExtension implements IExtension {
    private static _sceneObserver;
    private _injector;
    private _logger;
    /**
     * @inheritDoc
     */
    extend(context: IContext): void;
    private _whenInitializing;
    private _whenDestroying;
}