getCharCount method
When overridden in a derived class, calculates the number of characters produced by decoding all the bytes in the specified byte array.
Implementation
int getCharCount(typed.Uint8Buffer bytes) {
if (bytes.length < 2) {
throw Exception(
'mqtt_client::MQTTEncoding: Length byte array must comprise 2 bytes');
}
return (bytes[0] << 8) + bytes[1];
}