@spin_first
    def hub_history(self):
        
        self.session.send(self._query_socket, "history_request", content={})
        idents, msg = self.session.recv(self._query_socket, 0)
        
        if self.debug:
            pprint(msg)
        content = msg['content']
        if content['status'] != 'ok':
            raise self._unwrap_exception(content)
        else:
            return content['history']
TODO: Fucntion documentation
dataset/ETHPy150Open ipython/ipython-py3k/IPython/parallel/client/client.py/Client.hub_history--crossover with--dataset/ETHPy150Open scalyr/scalyr-agent-2/scalyr_agent/builtin_monitors/windows_system_metrics.py/SystemMonitor.__init__