interface KeyboardInfoRes {
    /** 键盘高度，0为键盘未弹出 */
    height: number;
}
/**
 * 键盘高度监听
 * @description 返回当前键盘的高度，持续监听
 * @param {callback} [options]
 * @module szient
 * @returns {KeyboardInfoRes}
 */
export default function watchKeyboardChanged(callback: Function): Promise<KeyboardInfoRes>;
export {};