static DtTypeFilter restore(String typeName, SaveState ss) {
		if (ss == null) {
			return new DtTypeFilter(typeName);
		}
		return new DtTypeFilter(ss);
	}
A class that holds enabled state for a type and related typedefs.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/tree/DtTypeFilter.java