import { CoreEvent } from "@tandem/common/messages";
import { IObservable } from "./base";
import { IDispatcher } from "@tandem/mesh";
export declare class Observable implements IObservable {
    private _target;
    private _observers;
    constructor(_target?: IObservable);
    observe(...dispatchers: IDispatcher<any, any>[]): void;
    unobserve(...dispatchers: IDispatcher<any, any>[]): void;
    notify(event: CoreEvent): any;
}