import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition
import org.slf4j.LoggerFactory
import static com.google.common.base.Preconditions.*
import static javax.ws.rs.core.Response.Status.*
import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition
import org.slf4j.LoggerFactory
import static com.google.common.base.Preconditions.*
import static javax.ws.rs.core.Response.Status.*