import { EventObservableTypes, IEventObservable } from './interfaces/event-observable.interface';
export declare class EventObservable implements IEventObservable {
    private _stack;
    constructor();
    private initStock;
    add(id: EventObservableTypes, fu: Function): void;
    invoke(id: EventObservableTypes, discharge: boolean, params?: Array<any>): void;
    destroy(): void;
}