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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 _do_timeout_for_query(self, timeout, datapath):
 """the process when the QUERY from the querier timeout expired."""

        dpid = datapath.id

        hub.sleep(timeout)
        outport = self._to_querier[dpid]['port']

        remove_dsts = []
        for dst in self._to_hosts[dpid]:
            if not self._to_hosts[dpid][dst]['replied']:
                # if no REPORT message sent from any members of
                # the group, remove flow entries about the group and
                # send a LEAVE message if exists.
                self._remove_multicast_group(datapath, outport, dst)
                remove_dsts.append(dst)

        for dst in remove_dsts:
            del self._to_hosts[dpid][dst]