import type { IncomingMessage } from 'node:http';
import type { Duplex } from 'node:stream';
import type { DshAccountSessions } from './account-sessions.js';
/** Multiplex native subscription pulls outside the browser's HTTP/1 connection pool. */
export declare class DshNativeSocket {
    private readonly directory;
    private readonly port;
    private readonly allowNonLoopback;
    private readonly server;
    private readonly waiting;
    private readonly heartbeat;
    private pending;
    constructor(directory: () => DshAccountSessions | undefined, port: number, allowNonLoopback?: boolean);
    readonly handler: (req: IncomingMessage, socket: Duplex, head: Buffer) => void;
    close(): void;
}
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