def fake_xpi(self, filename=None):
        if not filename:
            return open(get_image_path('non-animated.gif'), 'rb')
        return storage.open(filename, 'rb')
Any useless file that has a name property (for Django).
dataset/ETHPy150Open mozilla/addons-server/src/olympia/devhub/tests/test_views_validation.py/TestUploadCompatCheck.fake_xpi