export declare class Rect { static empty: Rect; left: number; top: number; right: number; bottom: number; constructor(left: number, top: number, right: number, bottom: number); static fromElement(element: HTMLElement): Rect; static fromWindow(_window: Window): Rect; inflate(inflateBy: number): void; intersectsWith(rect: Rect): boolean; getIntersectionWith(rect: Rect): Rect; }