test_model function missing

[07Agarg]

Hi, I am referring to your repository for Tiny Imagenet Classifier. I found a test_model function in the notebook ResNet18_224.ipynb. You are importing it from test_model.py but I don't see any such file.
You are importing train_model function also from train_model.py. But this file is present in utils.py

Let me know if I misunderstood anything and point me out to your test_model function.