import { ResizeObserverCallback } from './ResizeObserverCallback'; import { ResizeObserverOptions } from './ResizeObserverOptions'; declare class ResizeObserver { constructor(callback: ResizeObserverCallback); observe(target: Element, options?: ResizeObserverOptions): void; unobserve(target: Element): void; disconnect(): void; static toString(): string; } export { ResizeObserver };