human
I wrote the below code

    @functools.wraps(func)
    def guard_func(*args, **kwargs):
        real = kwargs.pop('_test_real', None)
        if (not real):
            raise Exception('Forgot    to    mock    or    pass    "_test_real=True"    to    %s', func.__name__)
        return func(*args, **kwargs)
    return guard_func

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

def test_real(func):