def irc_part(self, channel, reason, nick, user, host):
        pass
Return the subgraph consisting of the given nodes and edges
dataset/ETHPy150Open ecdavis/pants/pants/contrib/irc.py/IRCClient.irc_part--crossover with--dataset/ETHPy150Open QuantEcon/QuantEcon.py/quantecon/graph_tools.py/DiGraph.subgraph