/// <reference types="node" />
export declare enum PackageType {
    /** 纯文本 */
    PlainText = 1,
    /** 16进制 */
    Hex = 2,
    /** json */
    JSON = 3,
    /** base64 */
    Base64 = 4
}
export interface Options {
    /** 是否需要空格分隔符 */
    needSpace?: boolean;
    /** 编码格式 */
    encoding?: string;
}
/**
 * 进制转换
 * @param encoding 字符集: utf8, gb2312, cesu8...
 * @returns { bufferToHex, hexToStr, strToHex, onHexSendChange, decodePackage, encodePackage }
 */
declare function useConversionUtil(encoding: string): {
    bufferToHex: (buffer: Buffer) => string;
    hexToStr: (hexStr: string) => string;
    strToHex: (hex: string, options?: Options) => string;
    onHexSendChange: (value: string, isHex: boolean) => string;
    decodePackage: (str: string) => [PackageType, string];
    encodePackage: (value: string, type?: PackageType) => string;
};
export default useConversionUtil;