def get_dir_backup():
    """
    retrieves directory backup
    """
    args = parser.parse_args()
    s3_get_dir_backup(
        args.aws_access_key_id,
        args.aws_secret_access_key,
        args.bucket_name,
        args.s3_folder,
        args.zip_backups_dir, args.project)
retrieves directory backup