import { PropsWithoutRef } from 'react';
import { FadeProps } from '../transitionBase';
export interface BackdropProps<T extends HTMLElement = HTMLElement> extends Omit<FadeProps<T>, 'in'> {
    open?: boolean;
    /** 默认为'dark' */
    variant?: 'light' | 'dark';
}
export declare function Backdrop<T extends HTMLElement = HTMLElement>({ open, variant, ...props }: PropsWithoutRef<BackdropProps<T>>): import("@emotion/react/jsx-runtime").JSX.Element;