import { EventSubscription } from './event';
export declare class Stopify {
    private runtimeStack;
    private cps;
    private retval;
    private paused;
    private autoPause;
    private timeScale;
    private timeOut;
    private events;
    private options;
    constructor(runtime: IterableIterator<any>, events?: EventSubscription, options?: any);
    syncExec(): any;
    setAutoPause(autoPause: boolean): void;
    setTimeOut(timeOut?: number): void;
    setTimeScale(timeScale?: number): void;
    start(): void;
    stepExec(): void;
    pause(): void;
    resume(): void;
    stop(): void;
}
export declare const syncExec: (result: any) => any;