import { SidebarItem } from '../sidebar';
import { ThumbnailViewer } from './thumbnail-viewer';
import { ThumbnailPlugin } from './thumbnail-plugin';
export declare class ThumbnailSidebarItem extends SidebarItem {
    protected thumbnailViewer?: ThumbnailViewer;
    get thumbnailPlugin(): ThumbnailPlugin;
    get order(): number;
    build(): HTMLDivElement;
    update(): void;
    show(): void;
    protected destroy(): void;
}
