/**
 * 获取指定元素的 rect 值
 * @param id  格式为： `#id`
 */
export declare function getElementBoundingClientRect(id: string): Promise<{
    left: any;
    bottom: any;
    top: any;
    right: any;
    width: any;
    height: any;
    x: any;
    y: any;
}>;
/**
 * 根据指定 Id 获取元素宽度
 * @param id
 */
export declare function getWidth(id: string): Promise<any>;