How might one go about accessing a session value inside of a socket.io instance?

Question is in the title, just wondering if there is a function like `session.getSesh(seshid).userid` or something

The issue names session values and a socket.io instance but does not identify any files, tests, or entry points. First determine whether the repository supports this integration; done would require a clearly documented, supported way to access the session value from socket.io.

Written by the indexing model from the issue text.