import { Subscription } from 'rxjs/Subscription';
import { Observable } from 'rxjs/Observable';
import { Subject } from 'rxjs/Subject';
import 'rxjs/add/operator/first';
import 'rxjs/add/operator/take';
/**
* RxJs + EventBus
*
*
* @langversion TypeScript 2.0
* @tiptext
*
*/
export declare class RxEmitter {
    static cache: any;
    static on<T>(eventName: string, target?: any): Observable<T>;
    static one<T>(eventName: string, target?: any): Observable<T>;
    static emit<T>(eventName: string, ...rest: T[]): string;
    static has(eventName: string): boolean;
    static get(eventName: string): any;
    static getByTarget(target: any, eventName?: string): ICacheObj<any>[];
    static off(eventName: string): any;
    static unsubscribe(target: any, eventName?: string): void;
    static offAllByTarget(target: any): void;
    static offByTarget(target: any): void;
    static offAll(eventName?: string): void;
    /**
    * create cache at emit time
    * eventName ->  subject
    */
    private static createChache<T>(eventName);
}
export interface ICacheObj<T> {
    subject?: Subject<T>;
    eventName?: string;
    id?: any;
    target?: any;
    targets?: any[];
    callback?: (...rest: any[]) => any;
    subscription?: Subscription;
}