Kakao Open Builder v/s Chatterbox.py difference

I developed a Kakao channel based chatbot application sometimes back using chatterbox.py python library(https://github.com/JungWinter/chatterbox). I am aware that Kakao APIs are now getting migrated to Open Builder platform and want some help in assessing the impact on my application. Will I have to modify my application to work directly with Open Builder and without that it won’t work? What other implication will be there?

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