import org.simantics.scl.runtime.function.Function4;
import org.simantics.structural.stubs.StructuralResource2;
import org.simantics.structural2.utils.StructuralUtils;
-import org.simantics.ui.SimanticsUI;
import org.simantics.utils.datastructures.Pair;
import org.simantics.utils.ui.dialogs.ShowMessage;