/**
 * md5
 * @param {string} value
 * @returns
 */
export declare function md5(value: any): string;
export declare function string2Bit(value: any, length?: number): any;
/**
 *
 * @param {number} max
 * @returns
 */
export declare function random2Int(max: any): number;
export declare function cycle(interval: number | undefined, handle: any): {
    stop(): void;
};
export declare function isDev(): boolean;
/**
 *
 * @param {Buffer} buffer
 * @param {number | undefined} limit
 * @returns
 */
export declare function buffer2array(buffer: any, limit: any): any[];
export declare function mkdirs(dir: any): void;