feat: Add update_version to Model Registry

PiperOrigin-RevId: 506139032

google/cloud/aiplatform/models.py

@@ -4905,6 +4905,60 @@ def delete_version(
 
         _LOGGER.info(f"Deleted version {version} for {self.model_resource_name}")
 
+    def update_version(
+        self,
+        version: str,
+        version_description: Optional[str] = None,
+        labels: Optional[Dict[str, str]] = None,
+    ) -> None:
+        """Updates a model version.
+
+        Args:
+            version (str): Required. The version ID to receive the new alias(es).
+            version_description (str):
+                The description of the model version.
+            labels (Dict[str, str]):
+                Optional. The labels with user-defined metadata to
+                organize your Model versions.
+                Label keys and values can be no longer than 64
+                characters (Unicode codepoints), can only
+                contain lowercase letters, numeric characters,
+                underscores and dashes. International characters
+                are allowed.
+                See https://goo.gl/xmQnxf for more information
+                and examples of labels.
+
+        Raises:
+            ValueError: If `labels` is not the correct format.
+        """
+
+        current_model_proto = self.get_model(version).gca_resource
+        copied_model_proto = current_model_proto.__class__(current_model_proto)
+
+        update_mask: List[str] = []
+
+        if version_description:
+            copied_model_proto.version_description = version_description
+            update_mask.append("version_description")
+
+        if labels:
+            utils.validate_labels(labels)
+
+            copied_model_proto.labels = labels
+            update_mask.append("labels")
+
+        update_mask = field_mask_pb2.FieldMask(paths=update_mask)
+        versioned_name = self._get_versioned_name(self.model_resource_name, version)
+
+        _LOGGER.info(f"Updating model {versioned_name}")
+
+        self.client.update_model(
+            model=copied_model_proto,
+            update_mask=update_mask,
+        )
+
+        _LOGGER.info(f"Completed updating model {versioned_name}")
+
     def add_version_aliases(
         self,
         new_aliases: List[str],

tests/unit/aiplatform/test_models.py

@@ -2714,6 +2714,27 @@ def test_delete_version(self, delete_model_version_mock, get_model_with_version)
             )
         )
 
+    @pytest.mark.usefixtures("get_model_mock")
+    def test_update_version(
+        self, update_model_mock, get_model_mock, get_model_with_version
+    ):
+        my_model = models.Model(_TEST_MODEL_NAME, _TEST_PROJECT, _TEST_LOCATION)
+        my_model.versioning_registry.update_version(
+            _TEST_VERSION_ALIAS_1,
+            version_description="update version",
+            labels=_TEST_LABEL,
+        )
+
+        model_to_update = _TEST_MODEL_OBJ_WITH_VERSION
+        model_to_update.version_description = "update version"
+        model_to_update.labels = _TEST_LABEL
+
+        update_mask = field_mask_pb2.FieldMask(paths=["version_description", "labels"])
+
+        update_model_mock.assert_called_once_with(
+            model=model_to_update, update_mask=update_mask
+        )
+
     def test_add_versions(self, merge_version_aliases_mock, get_model_with_version):
         my_model = models.Model(_TEST_MODEL_NAME, _TEST_PROJECT, _TEST_LOCATION)
         my_model.versioning_registry.add_version_aliases(