dom.js

type ScrollToOptions = {
  top?: number;
  left?: number;
  behavior?: 'auto' | 'smooth';
}

declare class ScrollingElement extends Element {
  scroll(x: number, y: number): void;
  scroll(options: ScrollToOptions): void;
  scrollTo(x: number, y: number): void;
  scrollTo(options: ScrollToOptions): void;
  scrollBy(x: number, y: number): void;
  scrollBy(options: ScrollToOptions): void;
}

export const asScrollingElement = (element: Element): ScrollingElement =>
  (element: any);