def is_list(self):
        return self.__class__.VALUE_IS_LIST == (self.__class__.VALUE_IS_LIST & self.__mode)
Create a new firewall opening for port ``port``.
dataset/ETHPy150Open sdispater/cleo/cleo/inputs/input_option.py/InputOption.is_list--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/route/_interfaces.py/INetwork.open_port