'Test that the throttle method is done per instance of a class.'

def test_throttle_per_instance(self):

    class Tester(object, ):
        'A    tester    class    for    the    throttle.'
        @util.Throttle(timedelta(seconds=1))
        def hello(self):
            'Test    the    throttle.'
            return True
    self.assertTrue(Tester().hello())
    self.assertTrue(Tester().hello())
