three.js/examples/jsm/libs/stats.module.d.ts

declare interface Stats {
  REVISION: number;
  dom: HTMLDivElement;
  addPanel(panel: Stats.Panel): Stats.Panel;
  showPanel(id: number): void;
  begin(): void;
  end(): void;
  update(): void;
  domElement: HTMLDivElement;
  setMode(id: number): void;
}

declare function Stats(): Stats;

declare namespace Stats {
  interface Panel {
    dom: HTMLCanvasElement;
    update(value: number, maxValue: number): void;
  }

  function Panel(): Panel;
}

export default Stats