Returning the "idx" of retrieved passages

[jonathanjthomas]

Thank you for the great framework. I had a question about retrieval. How do we retrieve the "idx"(index) of the passages that are retrieved for a specific query?

Currently, from what I understand from the source code in HippoRAG.py, both the indexing and retrieval work on a list of strings, and do not keep track of the idx(index) provided in the corpus json. However, I require the idx in order to find the source document for the passage.