import java.util.Collection;
-import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
+import org.opendaylight.mdsal.binding.api.DataTreeModification;
import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
import org.slf4j.Logger;