import org.simantics.scl.runtime.function.Function2;
import org.simantics.scl.runtime.function.Function4;
import org.simantics.utils.datastructures.Pair;
import org.simantics.scl.runtime.function.Function2;
import org.simantics.scl.runtime.function.Function4;
import org.simantics.utils.datastructures.Pair;