/// <reference types="node" />
import { EventEmitter } from "events";
export declare class Subscriptions extends EventEmitter {
    private parentEmitter;
    constructor(parentEmitter: EventEmitter);
    subscribe(eventName: string, params: any, publish: (data: {}) => void): string;
    unsubscribe(subscription: string): void;
    removeAllListeners(eventName?: string | symbol): this;
    private subscribeToEvent;
}