import { BehaviorSubject, Observable } from "rxjs";
export declare class ScrollableContainerWrapper {
    private _container;
    defaultTarget: EventTarget | any;
    _innerScrollTop: BehaviorSubject<number | null>;
    scrollTop: number | null;
    scrollTop$: Observable<number | null>;
    private _emitScroll;
    private _getScrollTop;
    get container(): EventTarget | any;
    set container(value: EventTarget | any);
}