import { SdkErrorCode } from '../types/errors.js';
import type { FourErrorCode } from './types/errors.js';
export { SdkErrorCode } from '../types/errors.js';
export type { FourErrorCode } from './types/errors.js';
export declare function parseFourError(err: unknown): {
    code?: FourErrorCode;
    message: string;
};
/** 统一结构化错误（含错误码，便于上层分支处理） */
export declare class SdkError extends Error {
    readonly code: SdkErrorCode;
    cause?: unknown;
    constructor(code: SdkErrorCode, message: string, cause?: unknown);
}
/** 将任意异常归一为 SdkError */
export declare function parseSdkError(err: unknown): SdkError;