import * as i0 from "@angular/core";
export declare class ThemeService {
    private theme;
    toggleTheme(): void;
    private updateBodyClass;
    static ɵfac: i0.ɵɵFactoryDeclaration<ThemeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ThemeService>;
}