Tech-debt, add Numpy formatted docstrings and type hints to methods

[jtyoung84]

User story

As a user, I want to see documentation about the input parameters of a method, so I can understand how to use it easier.
As a developer, I want clean, well-documented code, so I can maintain it easier.

Acceptance criteria

• Interrogate report has 100% coverage
• Automate way to check that type hints are included in all the function signatures.

Sprint Ready Checklist

1. • Acceptance criteria defined
2. • Team understands acceptance criteria
3. • Team has defined solution / steps to satisfy acceptance criteria
4. • Acceptance criteria is verifiable / testable
5. • External / 3rd Party dependencies identified
6. • Ticket is prioritized and sized

Notes

https://peps.python.org/pep-0484/