/**
 * 纯API调用客户端封装
 * 提供最小化的OpenAI API调用封装，无业务逻辑
 *
 * 遵循零硬编码、零Fallback、零沉默失败原则
 */
export interface OpenAIClientConfig {
    baseURL: string;
    apiKey?: string;
    timeout?: number;
    maxRetries?: number;
    defaultHeaders?: Record<string, string>;
    allowDummyKey?: boolean;
}
export interface OpenAIRequestParams {
    model: string;
    messages: any[];
    max_tokens?: number;
    temperature?: number;
    stream?: boolean;
    tools?: any[];
    tool_choice?: any;
}
/**
 * 纯粹的OpenAI API客户端
 * 只负责API调用，不包含任何业务逻辑或格式转换
 */
export declare class PureOpenAIAPIClient {
    private client;
    private config;
    constructor(config: OpenAIClientConfig);
    /**
     * 🎯 发送非流式请求
     */
    sendChatCompletion(params: OpenAIRequestParams): Promise<any>;
    /**
     * 🎯 发送流式请求
     */
    sendStreamChatCompletion(params: OpenAIRequestParams): Promise<AsyncIterable<any>>;
    /**
     * 🎯 健康检查
     */
    healthCheck(): Promise<boolean>;
    /**
     * 验证配置
     */
    private validateConfig;
    /**
     * 验证请求参数
     */
    private validateRequestParams;
    /**
     * 处理API错误
     */
    private handleApiError;
    /**
     * 获取客户端配置（只读）
     */
    getConfig(): Readonly<OpenAIClientConfig>;
    /**
     * 获取基础URL
     */
    getBaseURL(): string;
    /**
     * 检查是否有有效的API Key
     */
    hasValidApiKey(): boolean;
}
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