What to write in the messages.getConversationMembers method???

Question

Python

I want to understand what to write to the "messages.getConversationMembers" method, I want to find out how many conversation participants are in the conversation itself (date of stay in the conversation)

I got something like this (dead code), help me figure out what needs to be written in the method

vk_session.method("messages.getConversationMembers",{"peer_id"})

Answer 1

But did not try to READ THE DOCUMENTATION?????
https://vk.com/dev/messages.getConversationMembers