import { Event } from "./Event"; export declare class ProgressEvent extends Event { static PROGRESS: string; static SOCKET_DATA: string; static STANDARD_ERROR_DATA: string; static STANDARD_OUTPUT_DATA: string; private _byteLoaded; private _bytesTotal; readonly bytesTotal: number; readonly bytesLoaded: number; clone(): Event; constructor(type: string, bubbles?: boolean, cancelable?: boolean, byteLoaded?: number, bytesTotal?: number); }