import React from 'react'; import { TransitionCallbacks } from './helpers'; type Dimension = 'height' | 'width'; export interface CollapseProps extends TransitionCallbacks, Pick, 'role'> { className?: string; in?: boolean; mountOnEnter?: boolean; unmountOnExit?: boolean; appear?: boolean; timeout?: number; dimension?: Dimension | (() => Dimension); getDimensionValue?: (dimension: Dimension, element: HTMLElement) => number; children: React.ReactElement; } declare const Collapse: React.ForwardRefExoticComponent>; export default Collapse;