def instance_destroy_at_top(self, ctxt, instance):
        self.msg_runner.instance_destroy_at_top(ctxt, instance)
Returns the *first* node for an item if it exists in this node.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/manager.py/CellsManager.instance_destroy_at_top--crossover with--dataset/ETHPy150Open openstack/taskflow/taskflow/types/tree.py/Node.find