@property
    def b_interval(self):
        b_interval = []
        for element in self.psets:
            b_interval.append(element.args[1])

        b_interval = Union(*b_interval)
        return b_interval
Test that trying to retrieve a swift that doesn't exist
dataset/ETHPy150Open sympy/sympy/sympy/sets/fancysets.py/ComplexRegion.b_interval--crossover with--dataset/ETHPy150Open openstack/glance_store/glance_store/tests/unit/test_swift_store.py/SwiftTests.test_get_non_existing