def get_host_uptime(self, ctxt, host_name):
        cell_name, host_name = cells_utils.split_cell_and_item(host_name)
        response = self.msg_runner.get_host_uptime(ctxt, cell_name,
                                                   host_name)
        return response.value_or_raise()
@param delayedCalls: See L{StubReactor.delayedCalls}.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/manager.py/CellsManager.get_host_uptime--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/trial/test/test_util.py/StubReactor.__init__