@Override
				public void actionPerformed(ActionContext context) {
					GTree gTree = (GTree) context.getContextObject();
					TreePath[] selectionPaths = gTree.getSelectionPaths();
					makeSelectionFromPaths(selectionPaths, false);
				}
A variable used to restrict open-ended operations, like expanding all nodes or filtering.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/calltree/CallTreeProvider.java