def get_serializer_class(self):
        """
        Returns different serializer classes with respect to action.
        """
        if ('create', 'partial_update', 'update') in self.action:
            # Return the UserFullSerializer for edit requests.
            serializer_class = UserFullSerializer
        else:
            serializer_class = super().get_serializer_class()
        return serializer_class
dataset/ETHPy150Open OpenSlides/OpenSlides/openslides/users/views.py/UserViewSet.get_serializer_class/swapped operands of `in`