    } | null;
    isSignatureNegotiation: boolean;
    bucketSignatureCache: {};
    region: string;
    port: number | null;
    timeout: number;
    obsSdkVersion: string;
    isCname: boolean;
    bucketEventEmitters: {};
    useRawXhr: boolean;
    encodeURIWithSafe: typeof encodeURIWithSafe;
    mimeTypes: {
        '7z': string;
        aac: string;