/// <reference types="stats.js" />
import Stats from 'three/examples/jsm/libs/stats.module';
export declare abstract class StatsClass {
    domElement: HTMLElement;
    abstract update(): void;
}
export declare function createStats(): StatsClass;
import { BaseViewerType } from '../_Base';
export declare function addStatsToViewer(viewer: BaseViewerType): {
    viewerElement: import("../_Base").HTMLElementWithViewer<import("three").Camera>;
    stats: Stats;
    removeStatsFromViewer: () => void;
} | undefined;