import { QwenConfig, QwenMessage } from './types';
declare module 'axios' {
    interface InternalAxiosRequestConfig {
        metadata?: {
            startTime: number;
        };
    }
}
export declare class QwenService {
    private client;
    private config;
    constructor(config: QwenConfig | {
        apiKey?: string;
        model?: string;
        baseURL?: string;
    });
    chat(messages: QwenMessage[]): Promise<string>;
    chatStream(messages: QwenMessage[]): AsyncGenerator<string, void, unknown>;
}
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