def get(self, request):
        if hasattr(request, 'session') and self._key in request.session:
            return request.session[self._key]
Sanity checks for the ipolicy.
dataset/ETHPy150Open danielfm/django-flash/src/djangoflash/storage/session.py/FlashStorageClass.get--crossover with--dataset/ETHPy150Open ganeti/ganeti/lib/cmdlib/group.py/LUGroupSetParams._CheckIpolicy