Lab code (reference solutions)

Reference code for this week's lab. Try the lab yourself first, then compare.

Run it locally: uv sync (or uv add the packages named at the top of each file), then uv run python <file>. Files:

• lab/library/__init__.py
• lab/library/library.py
• lab/library/models.py
• lab/library/storage.py
• lab/tests/test_library.py