Returns the array of arguments that would be given to
        iptables for the current Extension.

def specbits(self):
        """Returns the array of arguments that would be given to
        iptables for the current Extension.
        """
        bits = []
        for opt in sorted(self.__options):
            # handle the case where this is a negated option
            m = re.match(r'^! (.*)', opt)
            if m:
                bits.extend(['!', "--%s" % m.group(1)])
            else:
                bits.append("--%s" % opt)
                
            optval = self.__options[opt]
            if isinstance(optval, list):
                bits.extend(optval)
            else:
                bits.append(optval)
        return bits