/**
 * @license
 * Copyright 2026 Amodal Labs, Inc.
 * SPDX-License-Identifier: MIT
 */
import type { PgListener } from '@amodalai/db';
/**
 * Get or create the singleton PgListener, subscribed to all
 * notification channels.
 */
export declare function getPgListener(): Promise<PgListener>;
/**
 * Close the singleton listener. Used for graceful shutdown and testing.
 */
export declare function closePgListener(): Promise<void>;
