open
Description:
public static Session open (Slot slot, SessionOptions options, TlsInteraction? interaction, Cancellable? cancellable = null) throws Error
  
  Open a session on the slot.
This call may block for an indefinite period.
Parameters:
| slot | the slot to open session on | 
| options | session options | 
| interaction | optional interaction for logins or object authentication | 
| cancellable | optional cancellation object | 
Returns:
| the new session |