What feature would you like to see?

I would like to see the ability to return metadata alongside a passage when using dspy.Retrieve, in the form of a dict. The reason being is that many enterprise use-cases I have worked on have returned sources for the passages, match scores, etc. A simple metadata key would suffice to allow any and all flexibility in document responses.

Would you like to contribute?

• Yes, I'd like to help implement this.
• No, I just want to request it.

Additional Context

This is similar to langchain's document type