import { OverlayRef } from '@angular/cdk/overlay';
import { MatBottomSheetRef } from '@angular/material/bottom-sheet';
export declare class FsDatePickerOverlayRef {
    private _activeOverlayRef$;
    get destroy$(): import("rxjs").Observable<any>;
    get activeOverlayRef(): OverlayRef | MatBottomSheetRef | null;
    setActiveOverlay(ref: OverlayRef | MatBottomSheetRef): void;
    close(): void;
}