[Python] Detecting human presence in a WhatsApp chat to pause a chatbot (Python)

I'm developing a WhatsApp chatbot in Python and want to implement a human handover feature. The goal is to temporarily pause the bot's automated responses when a human administrator opens the chat to read it (either on their phone or WhatsApp Web).

My intended logic would be:

1. 
   A user is interacting with the bot.
   
   
2. 
   A human admin opens that specific chat to read the conversation. This event should pause the bot.
   
   
3. 
   If the admin sends a message, the bot remains inactive, signaling a full handover.
   
   
4. 
   However, if the admin simply reads the chat and closes it without sending a message, the bot should automatically resume its activity.
   

I have reviewed the official WhatsApp Business API documentation but could not find a specific webhook event or flag that indicates when a user (the admin) has opened a chat for reading.

Is there a known strategy or a reliable third-party API capable of detecting this kind of "presence" or "chat open" state? Any guidance or alternative approaches would be greatly appreciated.

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