code: func (s *Session) SetSyncTimeout(d time.Duration) {
  	s.m.Lock()
  	s.syncTimeout = d
  	s.m.Unlock()
  }
docs: // SetSyncTimeout sets the amount of time an operation with this session
  // will wait before returning an error in case a connection to a usable
  // server can't be established. Set it to zero to wait forever. The
  // default value is 7 seconds.