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 the API starts 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 related operators will require attention like any other breaking 
API changes cause.




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