import * as i0 from "@angular/core";
export declare class BackdropService {
    #private;
    readonly backdropClick$: import("rxjs").Observable<boolean>;
    activeBackdrop: any;
    scrollbarWidth: string;
    setBackdrop(type?: string): any;
    clearBackdrop(backdropElement: any): any;
    hideScrollbar(): void;
    resetScrollbar(): void;
    onClickHandler(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BackdropService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BackdropService>;
}