import React, { ReactNode } from 'react';
export declare type TBackdrop = {
    children?: ReactNode;
    className?: string;
    custom?: boolean;
    isOpen: boolean;
    styles?: object;
    toggle?: () => void;
    usePortal?: boolean;
    zIndex?: number;
    duration?: '100' | '200' | '300' | '400' | '500' | '600' | '700' | '800' | '900' | '1000' | string | number;
};
export declare const Backdrop: React.ForwardRefExoticComponent<TBackdrop & React.RefAttributes<HTMLDivElement>>;
export default Backdrop;