export interface Subscriber<TEvent> {
    (event: TEvent): void | Promise<void>;
}
export type Event = Record<string, any>;
export interface Topic<TEvent extends Event = Event> {
    getTopicName(): string;
    subscribe<TCEvent extends TEvent = TEvent>(cb: Subscriber<TCEvent>): void;
    subscribeOnce<TCEvent extends TEvent = TEvent>(cb: Subscriber<TCEvent>): void;
    getSubscribers(): Subscriber<TEvent>[];
    publish(event: TEvent): Promise<any>;
}