/// <reference types="chrome" />
import type { MessageTypesWithSubscriptions, SubscriptionMessageTypes } from '../types';
export declare function createSubscription<TMessageType extends MessageTypesWithSubscriptions>(id: string, port: chrome.runtime.Port): (data: SubscriptionMessageTypes[TMessageType]) => void;
export declare function isSubscriptionRunning(id: string): boolean;
export declare function unsubscribe(id: string): void;