unity_mlagents_learn.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/advanced_functionality/unity_ml_agents/unity_mlagents_learn.ipynb

Error:

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Exception encountered at "In [2]":
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ModuleNotFoundError Traceback (most recent call last)
in
5 import numpy as np
6 import pandas as pd
----> 7 from docker_utils import build_and_push_docker_image
8
9 role = sagemaker.get_execution_role()

ModuleNotFoundError: No module named 'docker_utils'

Open advanced_functionality/unity_ml_agents/unity_mlagents_learn.ipynb and inspect the failing import in In [2]. Trace how docker_utils is made available in the repository, then rerun the notebook's CI check; done means In [2] no longer raises ModuleNotFoundError and the CI check passes.

Written by the indexing model from the issue text.