/**
 * S2S HTTP/2 transport for Node.js
 * Uses the s2s binary protocol over HTTP/2 for efficient streaming
 *
 * This file should only be imported in Node.js environments
 */
import type { S2RequestOptions } from "../../../../common.js";
import type { AppendSession, AppendSessionOptions, ReadArgs, ReadSession, SessionTransport, TransportConfig } from "../../types.js";
export declare class S2STransport implements SessionTransport {
    private readonly transportConfig;
    private readonly compression;
    private connection?;
    private connectionPromise?;
    private closingPromise?;
    constructor(config: TransportConfig);
    makeAppendSession(stream: string, sessionOptions?: AppendSessionOptions, requestOptions?: S2RequestOptions): Promise<AppendSession>;
    makeReadSession<Format extends "string" | "bytes" = "string">(stream: string, args?: ReadArgs<Format>, options?: S2RequestOptions): Promise<ReadSession<Format>>;
    /**
     * Get or create HTTP/2 connection (one per transport)
     */
    private getConnection;
    private createConnection;
    close(): Promise<void>;
}
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