01_download_data.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/prep_data/image_data_guide/01_download_data.ipynb

Error:

---------------------------------------------------------------------------
Exception encountered at "In [15]":
---------------------------------------------------------------------------
FileNotFoundError Traceback (most recent call last)
in
----> 1 tf = tarfile.open('cifar-10-python.tar.gz')
2 tf.extractall()

/opt/conda/lib/python3.7/tarfile.py in open(cls, name, mode, fileobj, bufsize, **kwargs)
1573 saved_pos = fileobj.tell()
1574 try:
-> 1575 return func(name, "r", fileobj, **kwargs)
1576 except (ReadError, CompressionError):
1577 if fileobj is not None:

/opt/conda/lib/python3.7/tarfile.py in gzopen(cls, name, mode, fileobj, compresslevel, **kwargs)
1637
1638 try:
-> 1639 fileobj = GzipFile(name, mode + "b", compre

[...]

FileNotFoundError: [Errno 2] No such file or directory: 'cifar-10-python.tar.gz'

Open the linked prep_data/image_data_guide/01_download_data.ipynb and start at In [15], where tarfile.open tries to read cifar-10-python.tar.gz. Trace the preceding download steps, then rerun the notebook or CI to confirm the archive is present before extraction and the notebook completes successfully.

Written by the indexing model from the issue text.