import type { AIMessageContent, ChatRequestParams, ChatServiceConfig } from '../type';
export interface ILLMService {
    /**
     * 处理批量请求（非流式）
     */
    handleBatchRequest(params: ChatRequestParams, config: ChatServiceConfig): Promise<AIMessageContent | AIMessageContent[]>;
    /**
     * 处理流式请求
     */
    handleStreamRequest(params: ChatRequestParams, config: ChatServiceConfig): Promise<void>;
}
/**
 * Enhanced LLM Service with error handling and connection management
 */
export declare class LLMService implements ILLMService {
    private sseClient;
    private batchClient;
    private isDestroyed;
    private logger;
    /**
     * 处理批量请求（非流式）
     */
    handleBatchRequest(params: ChatRequestParams, config: ChatServiceConfig): Promise<AIMessageContent | AIMessageContent[]>;
    /**
     * 处理流式请求
     */
    handleStreamRequest(params: ChatRequestParams, config: ChatServiceConfig): Promise<void>;
    /**
     * 关闭所有客户端连接
     */
    closeConnect(): void;
    /**
     * 获取连接统计
     */
    getSSEStats(): {
        id: string;
        status: string;
        info: any;
    } | null;
    /**
     * 销毁服务
     */
    destroy(): Promise<void>;
}