This extension improves on the default behaviour of the main Python extension's handling of mypy in terms of the options it passes, however it appears to silently pass --follow-imports=skip. This causes all imports to be replaced by Any, in turn substantially limiting the usefulness of the type checking by causing both:

• spurious errors when used in combination with warn_return_any (possibly other cases too), and
• true errors to be missed, since any types imported (even from within the same project) are considered as Any and thus fully compatible with any other type