import { RendererFactory2 } from '@angular/core';
import { Observable } from 'rxjs';
export declare class DarkModeService {
    private darkModeOn;
    private _darkModeEnabled$;
    private readonly renderer;
    private readonly cookieName;
    get darkModeEnabled$(): Observable<boolean>;
    constructor(rendererFactory: RendererFactory2);
    toggleDarkMode(): void;
    private toggleCookie;
    private toggleClass;
}