import { FileStatFn } from './file-stat';
/**
 * Given the name of the directory about to be traversed, checks whether it should be - allows for the automatic
 * removal of "hidden" directories.
 *
 * @param {String} base
 * @param {String} directoryName
 * @param {Number} options
 * @return {Boolean}
 */
export declare function should_read_directory(base: string, directoryName: string, options: number): boolean;
/**
 * Reads the supplied directory path and builds an array of files within the directory. This will work recursively
 * on each sub directory found. The optional appendTo argument can be used to merge file paths onto an existing
 * array, and is used internally for recursion.
 */
export declare function read_dir_sync(dir: string, appendTo: string[], prefixLength: number, options: number): string[];
export declare function read_dir(dir: string, prefixLength: number, options: number, fileStat: FileStatFn): Promise<string[]>;