import * as React from 'react';
export interface TransitionProps {
    children: React.ReactNode;
    className: string;
    exiting: string;
    in: boolean;
    timeout?: number;
}
/**
 * Inspired react-transition-group/transition
 * but it apply "display: none;" for performance reason
 * @param param
 */
export declare function Transition(props: TransitionProps): JSX.Element;