Hello typeshed team. I want to know what is the current policy on third party stubs that have external dependencies. I am mainly interested in adding stubs for the seaborn library.

seaborn has 3 dependencies: matplotlib, pandas and numpy. pandas and numpy are already typed, matplotlib merged a massive PR matplotlib/matplotlib#24976 including stub files and a py.typed to be released in the next minor (3.8) release.

I have a prototype stub for seaborn here https://github.com/hamdanal/python-stubs/tree/main/stubs/seaborn that I wish to move to typeshed so that more people can use it. The prototype still needs a lot of work (remove private modules, test with all type checkers, stubtest, etc.) hence my question:
Should I go ahead and start working on this? of course it cannot be merged until the typed matplotlib release happen. If the policy is that external dependencies are not allowed I guess there is no point on working on this as seaborn depends heavily on matplotlib and has to use its types to be useful.