3_retail_recommend_pipeline.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/use-cases/retail_recommend/3_retail_recommend_pipeline.ipynb

Error:

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Exception encountered at "In [6]":
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NameError Traceback (most recent call last)
in
8 sagemaker_session=sagemaker_session)
9
---> 10 fm.set_hyperparameters(feature_dim=input_dims,
11 predictor_type='regressor',
12 mini_batch_size=1000,

NameError: name 'input_dims' is not defined

Open 3_retail_recommend_pipeline.ipynb and inspect In [6], then review the preceding cells for where input_dims should come from. Rerun the notebook or its CI check after resolving the undefined name; done means the failing cell executes without the reported NameError.

Written by the indexing model from the issue text.