def assertHasClass(self, selector, cls):
        elements = self.get_elements_or_raise(selector)

        for element in elements:
            classes = self.get_classes()
            if not classes in cls:
                raise AssertionError(
                    "All {}'s do not have the class {}".format(selector, cls))
dataset/ETHPy150Open roverdotcom/selenium-utility-belt/selenium_utility_belt.py/SeleniumUtilityBelt.assertHasClass/swapped operands of `in`