export declare const VOICE_RECORDING_OWNER_SESSION_KEY = "opengeni.voice-recording-owner.v1";
export type VoiceRecordingOwnerLease = {
    ownerId: string;
    release: () => void;
};
/**
 * Acquire one document-scoped owner identity shared by every voice hook in the
 * current document. The session-stored candidate survives reload, while the
 * held lock/handshake prevents opener-created or duplicated tabs from reusing
 * that identity concurrently.
 */
export declare function acquireDefaultVoiceRecordingOwnerLease(): Promise<VoiceRecordingOwnerLease>;
/**
 * Owner ids whose document still holds its Web Lock, or null when this browser
 * cannot answer. A lock is released the moment its tab closes or crashes, so a
 * recording whose owner is absent here is recoverable immediately instead of
 * after the heartbeat stale window.
 */
export declare function liveVoiceRecordingOwnerIds(): Promise<ReadonlySet<string> | null>;