import * as i0 from "@angular/core";
export declare class ThemingService {
    setStyle(key: string, href: string): void;
    removeStyle(key: string): void;
    private getLinkElementForKey;
    private getExistingLinkElementByKey;
    private createLinkElementWithKey;
    private getClassNameForKey;
    static ɵfac: i0.ɵɵFactoryDeclaration<ThemingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ThemingService>;
}