interface VerticalOptions {
    position: 'top' | 'bottom';
    windowHeight: number;
    childrenHeight: number;
    targetHeight: number;
    targetTop: number;
    offset: number;
}
interface VerticalMeasure {
    top: number;
    height: number;
    position: 'top' | 'bottom';
}
interface HorizontalOptions {
    windowWidth: number;
    childrenWidth: number;
    targetWidth: number;
    targetLeft: number;
    alignment: 'left' | 'center' | 'right';
    offset: number;
}
export declare function computeVerticalMeasure(options: VerticalOptions): VerticalMeasure;
export declare function computeLeftPosition(options: HorizontalOptions): number;
export declare function getScrollableParents(target: HTMLElement, parents?: HTMLElement[]): HTMLElement[];
export {};