WhatsApp Chat Database Replacement from iOS Backup

I need assistance with modifying my WhatsApp chat database. The project involves extracting messages from my current iOS backup, replacing them with ones from an older backup, and then ensuring the new database is in a format that can be re-imported to iOS.

Key tasks:
- Extracting messages from my current WhatsApp backup
- Replacing these with messages from an older backup
- Reformatting the new database for iOS compatibility