+import java.util.List;
+import java.util.Objects;
+import org.opendaylight.yangtools.yang.model.api.Deviation;
+import org.opendaylight.yangtools.yang.model.api.Deviation.Deviate;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
+import org.opendaylight.yangtools.yang.parser.builder.api.UnknownSchemaNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.util.AbstractBuilder;
+import org.opendaylight.yangtools.yang.parser.util.YangParseException;
+
+/**
+ * @deprecated Pre-Beryllium implementation, scheduled for removal.
+ */
+@Deprecated