/**
 * @license
 * Copyright Borda All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://borda.dev/license
 */
export interface BordaSubscription {
    unsubscribe: () => void;
}
export declare function publish<T = void>(key: string, value?: T): void;
export declare function subscribe<T = void>(key: string, handler: (arg: T) => void): BordaSubscription;
export declare function unsubscribe(key: string): void;