Missing .pyi stub and/or py.typed files

[elpacificmb]

Skipping analyzing "environ": module is installed, but missing library stubs or py.typed markerMypyimport-untyped

See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-importsMypy[note](https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports)

The package does not contain .pyi stub files, and

It doesn't include a py.typed file, which would mark the package as having inline types