Basic tool for checking typeshed stubs for completeness. Needs more work.
Currently it's somewhat usable as follows:
pip install typeshed-client inspect2
git clone https://github.com/JelleZijlstra/stubcheck
cd stubcheck
python3 checker.py os # or any other module
Major limitation: it checks typeshed as bundled by your version of mypy, not a checked out version.