def save(self):
        return self.user.userena_signup.change_email(self.cleaned_data['email'])
Returns True if `attr` of `obj` whose value is `res` requires a proxy.
dataset/ETHPy150Open bread-and-pepper/django-userena/userena/forms.py/ChangeEmailForm.save--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/rbac.py/AccessController.need_proxy