void setCallTreeOptions(CallTreeOptions callTreeOptions) {
		this.callTreeOptions = callTreeOptions;
		recurseIcon.setNumber(callTreeOptions.getRecurseDepth());
		unifyFunctionsAction.setSelected(!callTreeOptions.allowsDuplicates());
		filterNonCallsAction.setSelected(!callTreeOptions.allowsNonCallReferences());
	}
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