import { type ForwardedRef, type ReactNode } from 'react';
type RegionName = {
    attr: 'aria-labelledby';
    value: string;
} | {
    attr: 'aria-label';
    value: string;
};
/** Names the region after the popup's trigger. Null when nothing names
 *  it: the wrapper then stays a plain element. */
export declare function popupRegionName(popup: HTMLElement): RegionName | null;
export interface PopupRegionProps {
    /** The caller's own ref to the popup element. */
    popupRef?: ForwardedRef<HTMLDivElement>;
    /** Pass `false` while closed when the Portal stays mounted (Radix Select
     *  does), so no wrapper is left at the end of <body>. */
    open?: boolean;
    /** Renders the popup. Put the given ref on the popup element. */
    children: (ref: (node: HTMLDivElement | null) => void) => ReactNode;
}
/**
 * Place directly inside a Radix `*.Portal`. The Portal's ref reaches the
 * popup through this wrapper, so Radix still sees the popup's own exit
 * animation before it unmounts.
 */
export declare const PopupRegion: import("react").ForwardRefExoticComponent<PopupRegionProps & import("react").RefAttributes<HTMLDivElement>>;
export {};
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