/**
 * 处理emoji，用于把用utf16编码的字符转换成实体字符
 * @param {string} str - 需要编译/解析的字符串
 * @param {'encode' | 'decode'} type - encode 编译 decode 转义
 * @returns {string} 编译/解析后的字符串
 * @example
 *
 * handleEmoji("😃", "encode");
 * // => "😃"
 * handleEmoji("😊", "decode");
 * // => "😊"
 */
export declare function handleEmoji(str?: string, type?: 'encode' | 'decode'): string;