export default class Pdf {
    constructor(options?: {});
    url: any;
    container: any;
    brandColor: any;
    pdfLoadingTask: any;
    pdfDocument: any;
    numPages: number;
    pageArr: any[];
    isDestroyed: boolean;
    scollRef: any;
    inited: boolean;
    visibleImageIndices: Set<any>;
    maxVisibleImages: number;
    scrollListener: () => void;
    preloadThreshold: number;
    currentRenderIndex: number;
    updateVisibleImagesTimer: NodeJS.Timeout;
    lastUpdateTime: number;
    updateThrottleDelay: number;
    currentScale: number;
    scaleUpdateTimer: NodeJS.Timeout;
    scaleUpdateDelay: number;
    isZooming: boolean;
    renderedPages: any[];
    allPagesRendered: boolean;
    initialLoadingElement: any;
    lastPageLoadingElement: HTMLDivElement;
    init(options?: {}): any;
    renderAllPages(): Promise<void>;
    attachScrollListener(): void;
    updateScaleState(): void;
    updateVisibleImages(): void;
    _updateVisibleImagesCore(): void;
    refreshScroll(): void;
    removeLastPageLoading(): void;
    destroy(): void;
}