import { ModelInfo } from '../types';
import { MCPToolParams } from '../MCPClients/type';
export interface LLMServiceOptions {
    apiKey: string;
    baseUrl: string;
    model: string;
    providerId: string;
    tools?: MCPToolParams[];
}
/**
 * LLM 服务类
 * 处理与 LLM API 的所有交互
 */
export declare class LLMService {
    private client;
    private model;
    private providerId;
    private tools;
    constructor(options: LLMServiceOptions);
    /**
     * 更新工具列表
     */
    updateTools(tools: MCPToolParams[]): void;
    /**
     * 更新模型配置
     */
    updateModel(config: ModelInfo): void;
    /**
     * 格式化工具定义
     */
    private formatTools;
    /**
     * 发送消息并获取流式响应
     */
    streamChat(messages: Array<{
        role: 'user' | 'assistant' | 'system';
        content: string;
    }>, onChunk: (chunk: string) => void, abortController?: AbortController): Promise<string>;
}