public synchronized void dispose() {
		for (DataTypeManagerInfo dtmInfo : new ArrayList<>(openDTMs.values())) {
			closeDTM(dtmInfo); // mutates openDTMs map
		}
	}
Simple, non-ui implementation of the {@link DataTypeArchiveService} interface.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/DefaultDataTypeArchiveService.java