/**
 * ReplayTransport — Standalone Transport that replays from a cassette file.
 *
 * Inspired by VCR (Ruby) / Polly.js (Netflix) replay pattern.
 * No live server needed — responses come from the cassette.
 */
import type { JSONRPCMessage } from "@modelcontextprotocol/sdk/types.js";
import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js";
import type { CassetteEntry } from "../cassette.js";
export declare class ReplayTransport implements Transport {
    private readonly responses;
    /** Index tracking: for each method, how many responses we've consumed. */
    private readonly methodCursors;
    constructor(entries: CassetteEntry[]);
    start(): Promise<void>;
    send(message: JSONRPCMessage): Promise<void>;
    close(): Promise<void>;
    onclose?: () => void;
    onerror?: (error: Error) => void;
    onmessage?: <T extends JSONRPCMessage>(message: T, extra?: unknown) => void;
    sessionId?: string;
    /**
     * Find the next unmatched response for the given method.
     * Uses a cursor per method to handle repeated calls (e.g., multiple tools/list).
     */
    private findResponse;
}