encode method
Codifica o pacote (cabeƧalho + payload) em um Uint8List para envio ao servidor.
Implementation
Uint8List encode() {
final payloadData = payload.encode();
final payloadLength = payloadData.lengthInBytes;
final out = Uint8List(payloadLength + 4);
out[0] = payloadLength & 0xFF;
out[1] = (payloadLength >> 8) & 0xFF;
out[2] = (payloadLength >> 16) & 0xFF;
out[3] = sequenceID;
out.setRange(4, out.length, payloadData);
return out;
}