export type MediaPlaybackPause = () => void;
export type MediaPlaybackContextValue = {
    /** Claim exclusive playback; pauses whichever attachment was active. */
    requestPlayback: (id: string, pause: MediaPlaybackPause) => void;
    /** Release the slot when this attachment stops or unmounts. */
    releasePlayback: (id: string) => void;
};
/**
 * Coordinates inline media attachments so only one plays at a time within an
 * {@link AppShell} or {@link Window} chat surface. Published by
 * {@link MediaPlaybackProvider}; `null` outside both (media components no-op).
 */
export declare const MediaPlaybackContext: import('react').Context<MediaPlaybackContextValue | null>;