/// <reference types="node" resolution-mode="require"/>
/**
 * The platform-specific file separator. '\' or '/'.
 */
export declare const sep: "\\" | "/";
/**
 * Checks if path is a file
 * Synchronous mode
 *
 * @param {string} p
 * @returns {*}  {boolean}
 */
export declare function isFile(p: string): boolean;
/**
 * Checks if path is a dir
 * Synchronous mode
 *
 * @param {string} p
 * @returns {*}  {boolean}
 */
export declare function isDir(p: string): boolean;
/**
 * Read the contents of the file filename.
 * Asynchronous mode
 *
 * @param {string} filename
 * @param {string} [enc='utf8']
 * @returns {*}  {Promise<any>}
 */
export declare function readFile(filename: string): Promise<any>;
/**
 * Checks if the file or folder p is writable
 * Synchronous mode
 *
 * @param {string} p
 * @returns {*}  {boolean}
 */
export declare function isWritable(p: string): boolean;
/**
 * Write the string data to file.
 * Asynchronous mode
 *
 * @param {string} filename
 * @param {(string | Buffer)} data
 * @returns {*}  {Promise<any>}
 */
export declare function writeFile(filename: string, data: string | Buffer): Promise<any>;
/**
 * Rename the file. If newFileName and fileName be not in the same physical path,
 * the move file action will be triggered.
 * Asynchronous mode
 *
 * @param {string} FileName
 * @param {string} newFileName
 * @returns {*}  {Promise<any>}
 */
export declare function reFile(fileName: string, newFileName: string): Promise<any>;
/**
 * Delete the file p.
 * Asynchronous mode
 *
 * @param {string} p
 * @returns {*}  {Promise<any>}
 */
export declare function rmFile(p: string): Promise<any>;
/**
 * According to the path p to create a folder,
 * p contains multi-level new path will be automatically recursively created.
 * Asynchronous mode
 *
 * @param {string} p
 * @param {string} [mode='0777']
 * @returns {Promise<any>}
 */
export declare function mkDir(p: string, mode?: string): Promise<any>;
/**
 * Recursively read the path under the p folder.
 * Asynchronous mode
 *
 * @param {string} p
 * @param {*} filter
 * @param {string} [prefix='']
 * @returns {*}  {Promise<any>}
 */
export declare function readDir(p: string, filter: any, prefix?: string): Promise<any>;
/**
 * Subfolder of path p are recursively deleted. When reserve is true, the top-level folder is deleted
 * Asynchronous mode
 *
 * @param {string} p
 * @param {boolean} reserve
 * @returns {*}
 */
export declare function rmDir(p: string, reserve: boolean): Promise<unknown>;
/**
 * Modify the permissions of the file or folder p.
 * Asynchronous mode
 *
 * @param {string} p
 * @param {string} [mode='777']
 * @returns {*}  {Promise<any>}
 */
export declare function chmod(p: string, mode?: string): Promise<any>;