I found this video on the web; it is precisely what I want to achieve. Unfortunately, the author does not explain how he accomplished it. The video is about automating responses on WhatsApp. I would love to achieve the same, although I would be content with just being able to retrieve the messages people write and respond to them. I will address the logic behind the responses later.
I have been browsing the forum, but what I find are very old questions, from 2018. Is there any guide you can provide on how to implement the same?