def setUp(self):
        self._doDeferNext = False
        self._doStopNext = False
        self._doDieNext = False
        self.work = []
        self.scheduler = FakeScheduler()
        self.cooperator = task.Cooperator(
            scheduler=self.scheduler,
            # Always stop after one iteration of work (return a function which
            # returns a function which always returns True)
            terminationPredicateFactory=lambda: lambda: True)
        self.task = self.cooperator.cooperate(self.worker())
        self.cooperator.start()
This should generate an expression that picks the lower value for comparison.
dataset/ETHPy150Open twisted/twisted/twisted/test/test_cooperator.py/RunStateTests.setUp--crossover with--dataset/ETHPy150Open thedrow/django-natural-query/tests/unit/test_date_natural_query_descriptor.py/DateNaturalQueryDescriptorTestCase.test_concated_gte_operator_generates_the_right_expression_for_the_greater_than_or_equal_day_lookup