fix: flake8 error on mocked modules

[chilicheech]

This fixes a flake8 error when running flake8 on the .cache folder. This happens when you don't specifically specify what files to flake8. flake8 will automatically pick up the file. The error it throws is this:

✗ flake8 --format=pylint --output-file=flake8.log
./.cache/modules/my_awesome_module.py:17: [E302] expected 2 blank lines, found 1

Cheers,

[ssbarnea]

.cache folder is supposed to not be looked into by any linter and be part of .gitignore, but at the same time, I see no reason to avoid producing mocked modules that pass flake8 either.

Thanks for your first contrib and I hope to see more!