-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.RemoveGroupInputBuilder
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.UpdateGroupInputBuilder
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.UpdatedGroupBuilder
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.OriginalGroupBuilder
-import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.AddGroupInputBuilder