import { RestClient } from '../rest-client';
import { Observable } from 'rxjs/Observable';
/**
 * Called just before emitting the request, used to add functions to the observable
 * @param emitter function to add functions to the observable
 */
export declare function OnEmit(emitter: (resp: Observable<any>) => Observable<any>): (target: RestClient, propertyKey: string, descriptor: any) => any;