Image-classification-incremental-training-highlevel.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/introduction_to_amazon_algorithms/imageclassification_caltech/Image-classification-incremental-training-highlevel.ipynb

Error:

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Exception encountered at "In [14]":
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AttributeError Traceback (most recent call last)
in
6 payload = bytearray(payload)
7
----> 8 ic_classifier.content_type = 'application/x-image'
9 result = json.loads(ic_classifier.predict(payload))
10 # the result will output the probabilities for all classes

AttributeError: can't set attribute

Open introduction_to_amazon_algorithms/imageclassification_caltech/Image-classification-incremental-training-highlevel.ipynb and start at cell In [14], where the content_type assignment raises AttributeError. Determine the notebook-compatible prediction setup, then verify that this image-classification example completes CI without the failure.

Written by the indexing model from the issue text.