gkirchou commented on code in PR #56175:
URL: https://github.com/apache/airflow/pull/56175#discussion_r2630735399


##########
task-sdk/src/airflow/sdk/definitions/asset/normalizer.py:
##########
@@ -0,0 +1,53 @@
+#
+# 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 __future__ import annotations
+
+from typing import Any
+
+
+def normalize_asset_metadata(metadata_dict: dict[str, Any]) -> dict[str, Any]:
+    """
+    Normalize Asset metadata to ensure JSON serializability.
+
+    This function should be called before creating AssetMetadata objects.
+
+    Location to integrate: airflow/assets.py or wherever AssetMetadata is 
created
+    """
+    try:
+        import numpy as np
+    except ImportError:
+        np = None
+
+    def _normalize_value(value: Any) -> Any:
+        if isinstance(value, dict):
+            return {k: _normalize_value(v) for k, v in value.items()}
+        if isinstance(value, (list, tuple)):
+            return [_normalize_value(item) for item in value]
+        if np and isinstance(value, np.integer):
+            return int(value)
+        if np and isinstance(value, np.floating):
+            return float(value)
+        if np and isinstance(value, np.bool_):
+            return bool(value)
+        if np and isinstance(value, np.ndarray):
+            return value.tolist()
+        if np and isinstance(value, np.complexfloating):
+            return {"real": float(value.real), "imag": float(value.imag)}

Review Comment:
   Do you mean this part?
   
   ```
       try:
           import numpy as np
       except ImportError:
           np = None
   ```
   
   This was added because CI env may not have numpy.



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