def empty(self, value):
    return value is None
Tests that django decorators set certain attributes of the wrapped
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/db/__init__.py/IntegerProperty.empty--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/tests/regressiontests/decorators/tests.py/DecoratorsTest.test_attributes