Thanks for the package and the updates with type hints.

Currently mypy complains about not being able to find the type hints with the following errors:

main.py:1: error: Skipping analyzing 'inflection': found module but no type hints or library stubs
main.py:1: note: See https://mypy.readthedocs.io/en/latest/running_mypy.html#missing-imports

I think inflection is missing the actual py.typed file

https://www.python.org/dev/peps/pep-0561/#packaging-type-information