decode static method
Implementation
static String decode(String npub) {
try {
var decoder = Bech32Decoder();
var bech32Result = decoder.convert(npub);
var data = convertBits(bech32Result.data, 5, 8, false);
return HEX.encode(data);
} catch (e) {
Logger.log.e("Nip19 decode error ${e.toString()}");
return "";
}
}