It's time for a directory check! Make sure you've created and placed the relevant data in each of the following folders and files. In this step, we're adding the loss.py file:

├── data
├── docker
│   ├── build.sh
│   ├── clean.sh
│   ├── Dockerfile
│   └── kaggle.json
├── out
├── README.md
├── run.sh
└── src
    ├── loss.py