# Question related to C1M2

**URL:** <https://community.deeplearning.ai/t/question-related-to-c1m2/877997>\
**Category:** Retrieval Augmented Generation\
**Tags:** week-module-2, coursera-platform\
**Created:** [August 29, 2025, 2:31pm UTC](https://community.deeplearning.ai/t/question-related-to-c1m2/877997 "2025-08-29T14:31:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sumanta13](https://avatars.discourse-cdn.com/v4/letter/s/ac91a4/32.png) [@sumanta13](https://community.deeplearning.ai/u/sumanta13)\
**Post date:** [August 29, 2025, 2:31pm UTC](https://community.deeplearning.ai/t/question-related-to-c1m2/877997/1 "2025-08-29T14:31:05Z")

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I am not able to understand how to get the top\_k\_indices after performing the BM25\_RETRIEVER.retrieve( None, k = None) step.

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**Author:** ![lukmanaj](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/lukmanaj/32/161609_2.png) [@lukmanaj](https://community.deeplearning.ai/u/lukmanaj)\
**Post date:** [August 29, 2025, 3:51pm UTC](https://community.deeplearning.ai/t/question-related-to-c1m2/877997/2 "2025-08-29T15:51:37Z")

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I think this has been addressed in the ungraded lab. Kindly check it out. Or you can check the documentation. You could check [here](https://bm25s.github.io/) for examples in the documentation.

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**Author:** ![LaurenRitter](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/laurenritter/32/111104_2.png) [@LaurenRitter](https://community.deeplearning.ai/u/LaurenRitter)\
**Post date:** [September 1, 2025, 11:53pm UTC](https://community.deeplearning.ai/t/question-related-to-c1m2/877997/3 "2025-09-01T23:53:05Z")

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Hey @sumanta13 were you able to get this working? The code for this exercise has just been updated & fixed on Coursera, refreshing your workspace should give you access to the fixed copy of the notebook. Let me know if that solves your issue.