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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)