code: def disconnect(self, close=True):
          
          if close:
              for session in list(self.session_table.values()):
                  session.disconnect(True)
  
          log.info("Disconnecting transport connection")
          self.transport.disconnect()
docs: Closes the connection as well as logs off any of the
          Disconnects the TCP connection and shuts down the socket listener
          running in a thread.
  
          :param close: Will close all sessions in the connection as well as the
              tree connections of each session.