Hi @Einav Tam - Glad you liked the blog. I have shared the link to the code in github. (Search "code" in this blog. Its a link to the github with code.)

Over there, you will find a json which has training job configuration. (Easy option - search "accuracy" in the jupyter notebook and in In[11] you will find how I have defined the metric).

Similarly, you will find tuning_job_config, which is a json that has objective metric for tuning job. (Easy option - Search HyperParameterTuningJobObjective and under that you will see "MetricName": "acc").

And then you use these configurations when you launch hyperparameter tuning job. (you will find it in In[13] in jupyter notebook)

Hope this helps.

Thank you!