/**
 * Copyright 2014-present Palantir Technologies
 * @license MIT
 */
import { Set } from "./set";
/**
 * A set of callbacks which can be all invoked at once.
 * Each callback exists at most once in the set (based on reference equality).
 * All callbacks should have the same signature.
 */
export declare class CallbackSet<CB extends Function> extends Set<CB> {
    callCallbacks(...args: any[]): this;
}