Hi @databrick_usert , Hope you are doing well! 

Can you check the version of the SDK running in this notebook? If it's not an upgraded version then could you please try to upgrade the SDK version and then restart the python after the pip install? 

%pip install databricks-sdk-py --upgrade

You can refer to this document to upgrade to the SDK version : 

https://learn.microsoft.com/en-us/azure/databricks/dev-tools/sdk-python#--get-started-with-the-datab...

Also, i am sharing the reference link for this issue, hoping it will help you. 

https://github.com/databricks/databricks-sdk-py/issues/221

Please let me know if this helps and leave a like if this information is useful, followups are appreciated.
Kudos
Ayushi