Use MyPy in pipeline #79
Description
Is your feature request related to a problem? Please describe.
Type hinting is extensively used but there is no method of automatically checking for errors in the type hinting except by inspection using something like pylance on vscode.
Describe the solution you'd like
The utility mypy evidently will do the necessary checks on type hints in the code.
Additional context
This is a good project for someone outside of Jitsuin perhaps