what is jid.raw_string related to the msgstore.db whatsapp database?

hi, i was reading this article: [https://thebinaryhick.blog/2022/06/09/new-msgstore-who-dis-a-look-at-an-updated-whatsapp-on-android/](https://thebinaryhick.blog/2022/06/09/new-msgstore-who-dis-a-look-at-an-updated-whatsapp-on-android/) and i've found this tool too: [https://github.com/cadonici/android\_python-scripts/blob/f414efe3e8420ccef5c6e1a6d3b2b6a10f69c1bb/whatsapp/messages/android\_wa-self-destruction\_messages\_reporter.py](https://github.com/cadonici/android_python-scripts/blob/f414efe3e8420ccef5c6e1a6d3b2b6a10f69c1bb/whatsapp/messages/android_wa-self-destruction_messages_reporter.py)

both of them as the string jid.raw\_string inside the code, but i can't find anything about that. can someone tell me what it is exactly? thank you

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