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

    def dec(f):
        @wraps(f)
        def wrapped(*args, **kwargs):
            names = _names
            failures = []
            for scope in iterator:
                scope = tuple(scope)
                try:
                    f(*(args + scope), **kwargs)
                except Exception as e:
                    if (not names):
                        names = count()
                    failures.append((dict(zip(names, scope)), e))
            if failures:
                raise SubTestFailures(*failures)
        return wrapped
    return dec

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

@nottest
def subtest(iterator, *_names):