-import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev161014.resource.DeviceBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev161014.resource.ResourceBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev161014.resource.ResourceTypeBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev161014.resource.resource.resource.port.PortBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.types.rev161014.ResourceTypeEnum;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev161014.Hop.HopType;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev161014.topology.AToZ;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev161014.topology.AToZBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev161014.topology.ZToA;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev161014.topology.ZToABuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev190531.resource.DeviceBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev190531.resource.ResourceBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev190531.resource.ResourceTypeBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.rev190531.resource.resource.resource.port.PortBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.resource.types.rev181130.ResourceTypeEnum;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.Hop.HopType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.AToZ;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.AToZBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.AToZKey;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.ZToA;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.ZToABuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.topology.rev190531.topology.ZToAKey;