style: Activated Mypy Checks and Code Update for Compliance

[uwcdc]

This pull request introduces the activation of Mypy checks in our pre-commit configuration and updates the existing codebase to comply with Mypy standards.

1. Mypy Activation: Mypy, a static type checker for Python, has been added to our pre-commit hooks. This will help us catch potential errors at compile time by checking the type annotations in our Python code. This enhances the robustness of our code and aids in maintaining high code quality.
2. Code Update for Mypy Compliance: The existing codebase has been updated to comply with Mypy standards. Type annotations have been added where necessary, and any type mismatches identified by Mypy have been corrected. This not only makes our code Mypy-compliant but also improves its readability and maintainability by making the expected types explicit.
3. Testing: The changes have been thoroughly tested to ensure that the addition of type checks and the modifications to the code do not introduce any regressions. The changes were also tested to ensure that the pre-commit passes ALL necessary checks.

These changes mark a significant step towards improving our code quality checks and ensuring the reliability of our code. By enforcing type checks at the development stage, we can catch and fix potential issues earlier in the development process.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a0e76f6) 89.51% compared to head (cec08be) 89.51%.

Additional details and impacted files

@@           Coverage Diff           @@
##             mypy      #58   +/-   ##
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  Coverage   89.51%   89.51%           
=======================================
  Files          36       36           
  Lines        1955     1955           
=======================================
  Hits         1750     1750           
  Misses        205      205           

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[lsetiawan]

Nice work @uwcdc! I think this all looks great and ready to merge!