human
I wrote the below code

    def wrapper(*args):
        (self, pkt, s) = args[:3]
        if phantom_mode(pkt):
            if get_or_add:
                return (s, self.phantom_value)
            return s
        return f(*args)
    return wrapper

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

def phantom_decorate(f, get_or_add):