def _leave_transaction_management(self, managed):
        pass
Dev app server version of listdir.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/db/backends/__init__.py/BaseDatabaseWrapper._leave_transaction_management--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/files/gs.py/_listdir_local