/**
 * Utility functions used in the codebase.
 *
 * @internal
 */
export declare class Utils {
    /**
     * Loads all exported classes from the given directory.
     */
    static importClassesFromDirectories(directories: string[], formats?: string[]): Function[];
    /**
     * Checks if given value is a Promise-like object.
     */
    static isPromiseLike(arg: any): arg is Promise<any>;
    /**
     * Runs given callback that returns promise for each item in the given collection in order.
     * Operations executed after each other, right after previous promise being resolved.
     */
    static runInSequence<T, U>(collection: T[], callback: (item: T) => Promise<U>): Promise<U[]>;
    /**
     * Merges two given objects.
     */
    static merge(obj1: any, obj2: any): any;
}