see: https://github.com/python-telegram-bot/python-telegram-bot/wiki/Transition-guide-to-Version-12.0#note-about-version-13
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Deleting a branch is permanent. It CANNOT be undone. Continue?
see: https://github.com/python-telegram-bot/python-telegram-bot/wiki/Transition-guide-to-Version-12.0#note-about-version-13