Use empty `__init__.py` files.

pre-commit autoupdate

Update typing to PEP 585 style.

Update minimum supported Python version to 3.9.

Update AUTHORS.

Update supported devices, and dependencies.

Fixes for pre-commit.

supporting all the stuff

working dump

freedomlite initial commit

FreeStyle Libre: implement glucose unit identificaton.

Initial import of FreeStyle Libre 2 driver.

Reformat with the new black.

Update pre-commit config.

Include Python version 3.11 in CI.