import MockEvent from './MockEvent'; export default class MockProgressEvent extends MockEvent implements ProgressEvent { readonly lengthComputable: boolean; readonly loaded: number; readonly total: number; constructor(type: string, eventInitDict?: ProgressEventInit); initProgressEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, lengthComputableArg: boolean, loadedArg: number, totalArg: number): void; }