import type { FC, HTMLAttributes, ReactNode, Ref } from 'react';
export interface CollapseProps extends HTMLAttributes<HTMLDivElement> {
    ref?: Ref<HTMLDivElement>;
    /** Whether the content is expanded. */
    open: boolean;
    children?: ReactNode;
    /**
     * Mark the collapsed content `inert` so hidden focusable elements are removed
     * from tab and accessibility order while closed.
     */
    inertWhenClosed?: boolean;
}
/**
 * Smoothly expands/collapses its content via a `grid-template-rows` transition
 * (0fr ↔ 1fr) with an inner `overflow-hidden` wrapper. Shared by Tree and
 * TreeView so the collapse animation lives in one place.
 */
export declare const Collapse: FC<CollapseProps>;