import { Constructor } from '@loopback/core';
/**
 * Returns all files matching the given glob pattern relative to root
 *
 * @param pattern - A glob pattern
 * @param root - Root folder to start searching for matching files
 * @returns Array of discovered files
 */
export declare function discoverFiles(pattern: string, root: string): Promise<string[]>;
/**
 * Given a function, returns true if it is a class, false otherwise.
 *
 * @param target - The function to check if it's a class or not.
 * @returns True if target is a class. False otherwise.
 */
export declare function isClass(target: any): target is Constructor<any>;
/**
 * Returns an Array of Classes from given files. Works by requiring the file,
 * identifying the exports from the file by getting the keys of the file
 * and then testing each exported member to see if it's a class or not.
 *
 * @param files - An array of string of absolute file paths
 * @param projectRootDir - The project root directory
 * @returns An array of Class constructors from a file
 */
export declare function loadClassesFromFiles(files: string[], projectRootDir: string): Constructor<{}>[];