import type { GatewayClient, AgentChatParams } from "../types.js";
/**
 * 移除某 session 的流式订阅（cancel 或新消息开始时调用，避免同一事件被多个回调处理导致界面重复）
 */
export declare function clearSessionStreamSubscription(sessionId: string): void;
/**
 * Handle agent chat request with streaming support
 */
export declare function handleAgentChat(client: GatewayClient, params: AgentChatParams): Promise<{
    status: string;
    sessionId: string;
}>;