/**
 * Complete Streamable HTTP Transport Implementation
 *
 * 实现 MCP Streamable HTTP 传输协议
 * 支持会话管理、POST 请求和 SSE 响应解析
 */
import { EventEmitter } from 'events';
import type { StreamableHttpTransportConfig, JsonRpcRequest, JsonRpcResponse } from '../types/index.js';
export declare class StreamableHttpTransport extends EventEmitter {
    private config;
    private connected;
    private sessionId;
    constructor(config: StreamableHttpTransportConfig);
    connect(): Promise<void>;
    sendRequest(request: JsonRpcRequest): Promise<JsonRpcResponse>;
    private performRequest;
    /**
     * 解析SSE格式的响应
     * 格式：event: message\ndata: {JSON}\n\n
     */
    private parseSSEResponse;
    close(): Promise<void>;
    isConnected(): boolean;
    getSessionId(): string | null;
}
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