jerryshao commented on code in PR #6009:
URL: https://github.com/apache/gravitino/pull/6009#discussion_r1898289357


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clients/client-python/gravitino/api/model_version.py:
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@@ -0,0 +1,85 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+
+from abc import abstractmethod
+from typing import Optional, Dict, List
+from gravitino.api.auditable import Auditable
+
+
+class ModelVersion(Auditable):
+    """
+    An interface representing a single model checkpoint under a model `Model`. 
A model version
+    is a snapshot at a point of time of a model artifact in ML. Users can link 
a model version to a
+    registered model.
+    """
+
+    @abstractmethod
+    def version(self) -> int:

Review Comment:
   In the current design, version is a self-incremented integer version number, 
in the meantime, we also have "aliases" for the convenience of use.



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