import type { Canvas } from 'fabric/es';
/**
 * 注册按键限制元素移动
 *
 * @param fabricCanvas fabric 画布对象
 * @param key 按键 key 值，不区分大小写
 *
 * @returns 注销回调
 */
export declare const registerLimitMoveEvent: (fabricCanvas: Canvas, key: string) => () => () => void;