import com.google.common.primitives.UnsignedLong;
import java.util.Optional;
import org.opendaylight.controller.cluster.access.ABIVersion;
import org.opendaylight.controller.cluster.access.client.BackendInfo;
import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
import com.google.common.primitives.UnsignedLong;
import java.util.Optional;
import org.opendaylight.controller.cluster.access.ABIVersion;
import org.opendaylight.controller.cluster.access.client.BackendInfo;
import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;