def clear(self):
        self._lines = []
        self._index = defaultdict(list)
        self._hashed_hosts = []
        self._wildcards = []
Take care of any unfinished business.
dataset/ETHPy150Open radssh/radssh/radssh/known_hosts.py/KnownHosts.clear--crossover with--dataset/ETHPy150Open JoelBender/bacpypes/py34/bacpypes/consolecmd.py/ConsoleCmd.postloop