Description of changes:
Updated RAG workshop with the following changes:
use %store variable to store and retrieve variables throughout the labs and clean up.
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Issue #, if available:
Description of changes: Updated RAG workshop with the following changes: use %store variable to store and retrieve variables throughout the labs and clean up.
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.