get_started_mnist_deploy.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/frameworks/tensorflow/get_started_mnist_deploy.ipynb

Error:

---------------------------------------------------------------------------
Exception encountered at "In [1]":
---------------------------------------------------------------------------
JSONDecodeError Traceback (most recent call last)
in
11 # Get global config
12 with open('code/config.json', 'r') as f:
---> 13 CONFIG=json.load(f)
14
15 sess = Session()

/usr/local/lib/python3.7/json/__init__.py in load(fp, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
294 cls=cls, object_hook=object_hook,
295 parse_float=parse_float, parse_int=parse_int,
--> 296 parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
297
298

/usr/local/lib/python3.7/json/__init__.py in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)

[...]

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Start with frameworks/tensorflow/get_started_mnist_deploy.ipynb, especially the first cell that loads code/config.json, and reproduce the CI failure to inspect that file's contents. The work is done when the notebook loads its configuration successfully and the CI run passes.

Written by the indexing model from the issue text.