import { EventCallback, EventIdentifier, IEventSubscriber } from "./contracts.js";
import { EventTransporter } from "./event.js";
export declare class EventHandler {
    readonly transporter: EventTransporter;
    constructor(transporter?: EventTransporter);
    queue(event: EventIdentifier, cb: EventCallback): void;
    subscriber(subscriber: IEventSubscriber): void;
    on(event: EventIdentifier, cb: EventCallback): void;
    emit(event: EventIdentifier, data: any): boolean;
}