def update(self, dict):
        for key, val in dict.items():
            self[key]=val
Refcount maintains the global instance.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/persisted/dirdbm.py/DirDBM.update--crossover with--dataset/ETHPy150Open dahlia/wand/tests/_resource_test.py/test_refcount