def assert_not_is_instance(obj, cls, msg=None):
        pass
The test decorator.
dataset/ETHPy150Open JetBrains/python-skeletons/nose/tools/__init__.py/assert_not_is_instance--crossover with--dataset/ETHPy150Open zoofIO/flexx/flexx/event/tests/test_both.py/run_in_both