import type { IFs } from "memfs";
export declare const basename: (path: string, ext?: string) => string;
export declare const dirname: (path: string) => string;
/**
 * Copies the entire folder from the physical file system to the virtual one.
 *
 * @param fs The target file system.
 * @param source The source folder in the physical file system.
 * @param target The target folder in the virtual file system.
 * @param recursive If true, the copy operation is done recursively.
 * @param filter An optional filter to apply to the file names to copy.
 */
export declare const copyFolderToMemFs: (fs: IFs, source: string, target: string, recursive: boolean, filter?: RegExp) => void;
/**
 * Copies the entire folder from the virtual filesystem to physical file one.
 *
 * @param fs The source file system.
 * @param source The source folder in the physical file system.
 * @param target The target folder in the virtual file system.
 * @param recursive If true, the copy operation is done recursively.
 * @param filter An optional filter to apply to the file names to copy.
 */
export declare const copyFolderFromMemFs: (fs: IFs, source: string, target: string, recursive: boolean, filter?: RegExp) => void;
/**
 * Generates a randome file name with the given prefix and length.
 *
 * @param prefix A string to use as the prefix of the result file name.
 * @param length The length of the random part of the file name.
 *
 * @returns A random file name.
 */
export declare const generateRandomFilename: (prefix: string, length?: number) => string;