def _on_nodes_removed(self, monitor, trait_name, event):

        self.nodes_removed = event

        return
Save updates to this instance group.
dataset/ETHPy150Open enthought/pyface/pyface/tree/node_tree_model.py/NodeTreeModel._on_nodes_removed--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/objects/instance_group.py/InstanceGroup.save