import { Placement, BasePlacement, Offsets } from '@popperjs/core';
export declare const top = "top";
export declare const left = "left";
export declare const right = "right";
export declare const bottom = "bottom";
import { Boundary } from './types';
export declare function getLayoutRect(element: HTMLElement): {
    x: number;
    y: number;
    width: number;
    height: number;
};
export default function getBasePlacement(placement: Placement): BasePlacement;
export declare function distanceAndSkiddingToXY(placement: Placement, offset: [number, number]): Offsets;
export declare function getElementsFromRefs(boundary?: Boundary): HTMLElement[] | undefined;