/** @packageDocumentation
 * @module WidgetPanels
 */
import * as React from "react";
/** @internal */
export declare function useAnimatePanel(): {
    ref: React.RefObject<HTMLDivElement>;
    size: number;
    handleTransitionEnd: (e: React.TransitionEvent<HTMLDivElement>) => void;
    contentSize: number | undefined;
    transition: "transition" | "init" | undefined;
};
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