import type { DeflateOptions } from 'fflate';
/**
 * Encode and compress data
 *
 * 编码和压缩数据
 *
 * @param data - Data to encode / 要编码的数据
 * @param level - Compression level / 压缩级别
 *
 * @returns Base64 encoded compressed data / Base64 编码的压缩数据
 */
export declare const encodeData: (data: string, level?: DeflateOptions["level"]) => string;
/**
 * Decode and unzip data
 *
 * 解码和解压数据
 *
 * @param base64 - Base64 encoded data / Base64 编码的数据
 *
 * @returns Decoded string / 解码后的字符串
 */
export declare const decodeData: (base64: string) => string;