Module related to sessions, that allow to publish information to various other connected clients (e.g., Axion).
| Class | Session | 
    A session and the number of clients connected to it, as returned by the server. | 
| Class | TrackedSessions | 
    A list facade that converts appended strings to full-fledged Sessions, and refreshes the number of subscribers of a session whenever it is are accessed. | 
  
| Class | Sessions | 
    A list of the sessions that a REVEN server tracks. |