@validation.required_services(consts.Service.NOVA)
    @validation.required_openstack(users=True)
    @scenario.configure(context={"cleanup": ["nova"]})
    def create_and_delete_keypair(self, **kwargs):

        keypair = self._create_keypair(**kwargs)
        self._delete_keypair(keypair)
Returns the number of messages being stored after a
dataset/ETHPy150Open openstack/rally/rally/plugins/openstack/scenarios/nova/keypairs.py/NovaKeypair.create_and_delete_keypair--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/messages/tests/base.py/BaseTest.stored_messages_count