def delete_many(self, keys):
        for key in keys:
            self.delete(key)
Returns scalar value of unconstrained objective function
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/core/cache/backends/base.py/BaseCache.delete_many--crossover with--dataset/ETHPy150Open daeilkim/refinery/refinery/bnpy/bnpy-dev/bnpy/allocmodel/admix/OptimizerForHDPPE.py/objFunc_c