Hi! I want to implement tor stream isolation using stem library. what approach is suitable for distinguishing between vast variety of streams that come to tor, by a socks5 client such as Tor Browser. i need to be notified if tor button has assigned different user/pass to that stream, so it belongs to a different tab or requested domain. by the time among all the information i can get from a StreamEvent using stem, non of them helps me to find that what domain request is the source of this stream. is there a way using stem API to do this? Thanks in Advance.