import java.util.ArrayList;
import java.util.List;
+import org.forester.protein.BinaryDomainCombination;
+import org.forester.protein.DomainId;
+import org.forester.species.Species;
+
public class DirectedCombinableDomains extends BasicCombinableDomains {
public DirectedCombinableDomains( final DomainId n_terminal_key_domain, final Species species ) {