/// <reference types="react" />
import { Placement } from '@popperjs/core';
declare const oppositeDirections: {
    top: string;
    bottom: string;
    right: string;
    left: string;
};
declare type Direction = keyof typeof oppositeDirections;
export declare const getOppositePosition: (position: Direction) => string;
export declare function getBoxShadow(placement: Placement, color: string): string;
export declare function getArrowStyles(placement: Placement, arrowSize: number, arrowShadowColor?: string): React.CSSProperties;
export declare const cssVars: {
    readonly arrowShadowColor: {
        var: string;
        varRef: string;
    };
    readonly arrowSize: {
        var: string;
        varRef: string;
    };
    readonly arrowSizeHalf: {
        var: string;
        varRef: string;
    };
    readonly arrowBg: {
        var: string;
        varRef: string;
    };
    readonly transformOrigin: {
        var: string;
        varRef: string;
    };
    readonly arrowOffset: {
        var: string;
        varRef: string;
    };
};
export declare const toTransformOrigin: (placement: Placement) => string;
declare const defaultEventListeners: {
    scroll: boolean;
    resize: boolean;
};
export declare function getEventListenerOptions(value?: boolean | Partial<typeof defaultEventListeners>): {
    enabled?: boolean | undefined;
    options?: {
        scroll: boolean;
        resize: boolean;
    } | undefined;
};
export {};