export declare enum QiniuErrorName {
    InvalidFile = "InvalidFile",
    InvalidToken = "InvalidToken",
    InvalidMetadata = "InvalidMetadata",
    InvalidChunkSize = "InvalidChunkSize",
    InvalidCustomVars = "InvalidCustomVars",
    NotAvailableUploadHost = "NotAvailableUploadHost",
    ReadCacheFailed = "ReadCacheFailed",
    InvalidCacheData = "InvalidCacheData",
    WriteCacheFailed = "WriteCacheFailed",
    RemoveCacheFailed = "RemoveCacheFailed",
    GetCanvasContextFailed = "GetCanvasContextFailed",
    UnsupportedFileType = "UnsupportedFileType",
    FileReaderReadFailed = "FileReaderReadFailed",
    NotAvailableXMLHttpRequest = "NotAvailableXMLHttpRequest",
    InvalidProgressEventTarget = "InvalidProgressEventTarget",
    RequestError = "RequestError"
}
export declare class QiniuError implements Error {
    name: QiniuErrorName;
    message: string;
    stack: string | undefined;
    constructor(name: QiniuErrorName, message: string);
}
export declare class QiniuRequestError extends QiniuError {
    code: number;
    reqId: string;
    /**
     * @description 标记当前的 error 类型是一个 QiniuRequestError
     * @deprecated 下一个大版本将会移除，不推荐使用，推荐直接使用 instanceof 进行判断
     */
    isRequestError: boolean;
    /**
     * @description 发生错误时服务端返回的错误信息，如果返回不是一个合法的 json、则该字段为 undefined
     */
    data?: any;
    constructor(code: number, reqId: string, message: string, data?: any);
}
/**
 * @description 由于跨域、证书错误、断网、host 解析失败、系统拦截等原因导致的错误
 */
export declare class QiniuNetworkError extends QiniuRequestError {
    constructor(message: string, reqId?: string);
}