import * as i0 from "@angular/core";
/**
 * Utility functions related to Web browser window/document objects.
 */
export declare class BrowserWindowService {
    protected platformId: Object;
    private windowDocument;
    constructor(platformId: Object, windowDocument: any);
    /**
     * Returns browser window object if the app is running in the browser.
     * Returns null otherwise.
     */
    get window(): (Window | null);
    /**
     * Returns browser document object if the app is running in the browser.
     * Returns null otherwise.
     */
    get document(): (any | null);
    static ɵfac: i0.ɵɵFactoryDeclaration<BrowserWindowService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BrowserWindowService>;
}