def test_importIdentity(self):
        self.p.perspective_do("from twisted.manhole import service")
        self.client.setZero()
        self.p.perspective_do("int(service is sys.modules['twisted.manhole.service'])")
        msg = self.client.getMessages()[0]
        self.failUnlessEqual(msg, ('result',"1\n"))
Get the balance of the ring. The balance value is the highest
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_manhole.py/ManholeTest.test_importIdentity--crossover with--dataset/ETHPy150Open openstack/swift/swift/common/ring/builder.py/RingBuilder.get_balance