import { ReactNode } from 'react';
/**
 * Ensures at most one inline audio/video attachment plays at a time within the
 * subtree. Mount in {@link AppShell} and around a {@link Window}'s preserved
 * chat portal — relocation does not inherit this provider from ancestors.
 */
export declare function MediaPlaybackProvider({ children }: {
    children: ReactNode;
}): import("react").JSX.Element;