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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_fanout_client(self, hosts, max_concurrency=64, auto_batch=None):
 """Returns a thread unsafe fanout client. Returns an instance of :class:`FanoutClient`. """

        if auto_batch is None:
            auto_batch = self.auto_batch
        return FanoutClient(hosts, connection_pool=self.connection_pool,
                            max_concurrency=max_concurrency,
                            auto_batch=auto_batch)