/** 上游返回非 2xx 状态码 */
export declare class UpstreamError extends Error {
    status: number;
    body: string;
    constructor(status: number, body: string);
}
/** 流式传输中断 */
export declare class StreamInterruptedError extends Error {
    reason: string;
    constructor(reason: string);
}
/** 网络层异常 */
export declare class NetworkError extends Error {
    cause: Error;
    constructor(cause: Error);
}
/** OpenAI 格式错误响应 */
export declare function formatOpenAIError(status: number, message: string, code?: string | number): {
    error: {
        message: string;
        type: string;
        code: string | number;
    };
};
/** Anthropic 格式错误响应 */
export declare function formatAnthropicError(type: string, message: string): {
    type: string;
    error: {
        type: string;
        message: string;
    };
};
//# sourceMappingURL=errors.d.ts.map