import { IObservable } from '../src/internal/Observable';
import { IScheduler } from '../src/schedulers/Scheduler';
export interface IDeferred {
    resolve(): void;
}
export declare function add1(x: number): number;
export declare function even(e: number): boolean;
export declare function sum(a: number, b: number): number;
export declare function passthrough(z: any, x: any): any;
export declare const scheduler: IScheduler;
export declare function run(observable: IObservable<any>, d: IDeferred): void;
export declare function array(n: number): any[];
export declare const onCycle: (event: any) => void;
export declare const onEnd: () => void;