Hi

As others have said stored procedures don't currently support Python. You can either create the stored procedure with SQL using Windows functions and describe history or put it into a notebook and not have stored procedures. The video is about experimental features.

Current docs: 

• CREATE PROCEDURE docs (SQL only): https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-syntax-ddl-create-procedure
• SQL scripting for procedural logic: https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-scripting
• DESCRIBE HISTORY for Delta table version queries: https://learn.microsoft.com/en-us/azure/databricks/sql/language-manual/sql-ref-functions

Thanks,

Emma