/// <reference types="node" />
import { SocketType } from "dgram";
export type InterfaceAddresses = {
    [K in SocketType]?: string;
};
export declare const interfaceAddress: (type: SocketType, interfaceAddresses: InterfaceAddresses | undefined) => string | undefined;
export declare function randomPort(protocol?: SocketType, interfaceAddresses?: InterfaceAddresses): Promise<number>;
export declare function randomPorts(num: number, protocol?: SocketType, interfaceAddresses?: InterfaceAddresses): Promise<number[]>;
export declare function findPort(min: number, max: number, protocol?: SocketType, interfaceAddresses?: InterfaceAddresses): Promise<number>;