human
Here's a good function header given the following:
I wrote the below code

    class MyException(Exception, ):
        pass
    class K:
        def find_module(self, name, path):
            if (name == 'time'):
                return self
            return None
        def load_module(self, name):
            raise MyException
    if ('time' in sys.modules):
        del sys.modules['time']
    loader = K()
    sys.meta_path.append(loader)
    try:
        import time
        AssertUnreachable()
    except MyException:
        pass
    sys.meta_path.remove(loader)
    import time

What's a good function header?
assistant
#Here's a good function header.

def test_meta_path_before_builtins():