export declare function uploadFile({ bucketName, 'objectPath+': key, file, }: {
    bucketName: string;
    'objectPath+': string;
    file: Blob;
}): Promise<void>;
export declare function downloadFile({ bucketName, 'objectPath+': key, }: {
    bucketName: string;
    'objectPath+': string;
}): Promise<ArrayBuffer>;