def is_expandable(self, node):

        # Determine the node type for this node.
        node_type = self.node_manager.get_node_type(node)

        return node_type.is_expandable(node)
Retrieve the actual pid
dataset/ETHPy150Open enthought/pyface/pyface/tree/node_tree_model.py/NodeTreeModel.is_expandable--crossover with--dataset/ETHPy150Open serverdensity/sd-agent/utils/pidfile.py/PidFile.get_pid