o-nikolas commented on a change in pull request #19665:
URL: https://github.com/apache/airflow/pull/19665#discussion_r759698875



##########
File path: airflow/providers/amazon/aws/hooks/redshift.py
##########
@@ -65,9 +81,9 @@ def cluster_status(self, cluster_identifier: str) -> str:
         """
         try:
             response = 
self.get_conn().describe_clusters(ClusterIdentifier=cluster_identifier)['Clusters']
-            return response[0]['ClusterStatus'] if response else None
+            return RedshiftClusterStates(response[0]['ClusterStatus']) if 
response else None

Review comment:
       Good discussion folks!
   
   IMO if there are breaking API changes and it's returning different states 
than you expect it's going to break your code whether you're using strings or 
an enum, so it's a moot point. I still vote for using Enums from the start 
here, add error handling, and if APIs change then this code and other code in 
the operators will require attention like any other breaking API changes cause.




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