hpo_image_classification_warmstart.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/hyperparameter_tuning/image_classification_warmstart/hpo_image_classification_warmstart.ipynb

Error:

---------------------------------------------------------------------------
Exception encountered at "In [10]":
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ModuleNotFoundError Traceback (most recent call last)
in
----> 1 import bokeh
2 import bokeh.io
3 bokeh.io.output_notebook()
4 from bokeh.plotting import figure, show
5 from bokeh.models import HoverTool

ModuleNotFoundError: No module named 'bokeh'

Open hyperparameter_tuning/image_classification_warmstart/hpo_image_classification_warmstart.ipynb and inspect cell In [10], where the CI traceback reports the missing import. Run the notebook or its CI check to reproduce the failure; done means the notebook completes this cell without ModuleNotFoundError.

Written by the indexing model from the issue text.