Inform the library that the user has opened a chat.
Some library logic depends on this, for example, the library will
periodically ping the server to keep the updates flowing.
Warning: Opening a chat with openChat method will make the library make additional requests
every so often. Which means that you should avoid opening more than 5-10 chats at once,
as it will probably trigger server-side limits and you might start getting transport errors
or even get banned.
Inform the library that the user has opened a chat.
Some library logic depends on this, for example, the library will periodically ping the server to keep the updates flowing.