def __init__(self, retvalue=True):
        self.retvalue = retvalue
Fill all datasets listed in ``fixtures`` into database.
dataset/ETHPy150Open openstack/oslo.vmware/oslo_vmware/common/loopingcall.py/LoopingCallDone.__init__--crossover with--dataset/ETHPy150Open henriquebastos/django-fixturapp/src/fixturapp/management/commands/__init__.py/fill_database