-import org.opendaylight.yangtools.yang.parser.builder.api.AbstractBuilder;
-import org.opendaylight.yangtools.yang.parser.util.*;
-
+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