import { SpecialPropertyMessage } from '../messages/SpecialPropertyMessage';
import { ClientSpecialProperty } from './ClientSpecialProperty';
export type ClientEventHandler = (data: any) => void;
export declare class ClientEvent implements ClientSpecialProperty {
    action: any;
    private listeners;
    subscribe(cb: ClientEventHandler): void;
    unsubscribe(cb: ClientEventHandler): boolean;
    unsubscribeAll(): void;
    onMessage(message: SpecialPropertyMessage): void;
}