import { kClientState } from './internal/symbol';
import { Session } from './session';
export declare class Client extends Session {
    [kClientState]: ClientState;
    constructor();
    _resendPacketsForNegotiation(): void;
    setKeepAlive(enable: boolean, _initialDelay?: number): void;
    ref(): void;
    unref(): void;
    spawn(port: number, address?: string): Promise<Client>;
    connect(port: number, address?: string): Promise<any>;
}
export declare class ClientState {
    hostname: string;
    receivedNegotiationPacket: boolean;
    constructor();
}