def handle_field(self, obj, field):
        raise NotImplementedError
Make implicit need, ie the need is not parsed but implied by the command
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/core/serializers/base.py/Serializer.handle_field--crossover with--dataset/ETHPy150Open ioflo/ioflo/ioflo/base/building.py/Builder.makeImplicitDirectFramerNeed