code: func (s *Server) Encrypted() bool {
  	LANEncrypted := s.serfLAN.EncryptionEnabled()
  	if s.serfWAN == nil {
  		return LANEncrypted
  	}
  	return LANEncrypted && s.serfWAN.EncryptionEnabled()
  }
docs: // Encrypted determines if gossip is encrypted