interface MCPMessage {
    jsonrpc: '2.0';
    id?: number;
    method?: string;
    params?: Record<string, unknown>;
    result?: Record<string, unknown>;
    error?: {
        code: number;
        message: string;
        data?: unknown;
    };
}
export declare class MCPTestHarness {
    private messageEmitter;
    private responses;
    private messageQueue;
    private isConnected;
    connect(): Promise<MCPMessage>;
    sendInitialize(): Promise<MCPMessage>;
    sendMessage(message: MCPMessage): Promise<MCPMessage>;
    onServerMessage(message: MCPMessage): void;
    waitForNotification(method: string, timeout?: number): Promise<MCPMessage>;
    clearResponses(): void;
}
export {};