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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 request(self, service, hostport=None, **kwargs):
 """Initiate a new request through this PeerGroup. :param hostport: If specified, requests will be sent to the specific host. Otherwise, a known peer will be picked at random. :param service: Name of the service being called. Defaults to an empty string. """

        return PeerClientOperation(
            peer_group=self,
            service=service,
            hostport=hostport,
            **kwargs)