import { Datagram, DatagramInitObject } from "../../Independents/Datagram/datagram-types.js";
import { GatewayProxy } from "../GatewayProxy.js";
export declare abstract class Transport {
    employer: GatewayProxy;
    firstHeartbeat: number;
    lastHeartbeat: number;
    allowedSilence: number;
    constructor(employer: GatewayProxy);
    get debug(): any;
    abstract get isClosed(): boolean;
    abstract transmitDatagram(d: DatagramInitObject): void;
    abstract close(): void;
    onReceiveDatagram(d: Datagram): void;
}