def ref_alias(self, alias):
        self.alias_refcount[alias] += 1
C{resume()}ing a paused, stopped task should be a no-op; it should not
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/db/models/sql/query.py/Query.ref_alias--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/test/test_cooperator.py/RunStateTests.test_pauseStopResume