import { type ReactNode } from 'react';
export declare const OVERLAY_OPEN_ATTR = "data-overlay-open";
export declare function markOverlaySurface<T>(component: T): T;
export declare function markOverlayOpen(node: ReactNode, open: boolean): ReactNode;
export declare function markOverlayOpenChildren(children: ReactNode, open: boolean): ReactNode;
/** Report enter/open immediately; clear on leave so the trigger unfills as the overlay starts closing. */
export declare function useReportOverlayTrigger(open: boolean): void;
/**
 * Declarative pairing of a trigger host with a portaled overlay (Modal / Drawer / nested Popover).
 * The nearest non-surface child receives `data-overlay-open` while any descendant overlay is entering or open.
 */
export declare function OverlayTrigger({ children }: {
    children: ReactNode;
}): import("react").JSX.Element;