code: func (s *Session) unsetSocket() {
  	if s.masterSocket != nil {
  		s.masterSocket.Release()
  	}
  	if s.slaveSocket != nil {
  		s.slaveSocket.Release()
  	}
  	s.masterSocket = nil
  	s.slaveSocket = nil
  }
docs: // unsetSocket releases any slave and/or master sockets reserved.