uranusjr commented on code in PR #40156:
URL: https://github.com/apache/airflow/pull/40156#discussion_r1634196672


##########
airflow/serialization/serialized_objects.py:
##########
@@ -847,10 +847,10 @@ def _serialize_params_dict(cls, params: ParamsDict | 
dict):
         return serialized_params
 
     @classmethod
-    def _deserialize_params_dict(cls, encoded_params: dict) -> ParamsDict:
+    def _deserialize_params_dict(cls, encoded_params: list) -> ParamsDict:
         """Deserialize a DAG's Params dict."""
         op_params = {}
-        for k, v in encoded_params.items():
+        for k, v in dict(encoded_params).items():

Review Comment:
   Ah or is this so we can handle both the old and new cases? Converting to 
dict seems unnecessary to me though. Maybe
   
   ```python
   if isinstance(encoded_params, collections.abc.Mapping):
       encoded_param_pairs = encoded_params.items()
   else:
       encoded_param_pairs = encoded_params
   for k, v in encoded_param_pairs:
       ...
   ```



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