Add comments and docstrings to main.py and api.py

[sweep-nightly[bot]]

Description

This PR adds comments and docstrings to the main.py and api.py files in order to improve code readability and maintainability.

Summary of Changes

main.py

• Added a module-level docstring explaining the purpose of the file.
• Added comments above import statements to explain the purpose of each imported module or function.
• Added a comment above the 'transform' variable to explain its purpose.
• Added a comment above the 'trainset' variable to explain its purpose.
• Added a comment above the 'trainloader' variable to explain its purpose.
• Added a docstring to the 'Net' class explaining its purpose and methods.

api.py

• Added a module-level docstring explaining the purpose of the file.
• Added comments above import statements to explain the purpose of each imported module or function.
• Added a comment above the 'model' variable to explain its purpose.
• Added a comment above the 'transform' variable to explain its purpose.
• Added a comment above the 'app' variable to explain its purpose.
• Added a docstring to the 'predict' function explaining its purpose, parameters, and return value.

These changes improve the code documentation and make it easier for developers to understand and maintain the codebase.

Fixes #11.

---

🎉 Latest improvements to Sweep:

• Sweep can now passively improve your repository! Check out Rules to learn more.

---

💡 To get Sweep to edit this pull request, you can:

• Comment below, and Sweep can edit the entire PR
• Comment on a file, Sweep will only modify the commented file
• Edit the original issue to get Sweep to recreate the PR from scratch

[sweep-nightly[bot]]

Rollback Files For Sweep

• [ ] Rollback changes to src/api.py
• [ ] Rollback changes to src/main.py

[sweep-nightly[bot]]

Apply Sweep Rules to your PR?

• [ ] Apply: All docstrings and comments should be up to date.
• [ ] Apply: Code should be properly formatted and indented.
• [ ] Apply: Variable and function names should be descriptive and follow a consistent naming convention.
• [ ] Apply: Imports should be organized and grouped together.
• [ ] Apply: There should be no unused imports or variables.
• [ ] Apply: Code should be properly commented and include docstrings for functions and classes.