from static method
Returns an instance for tag, or null when the tag is not ISO 15693.
Implementation
static Iso15693? from(NfcTag tag) {
final data = tag.data.iso15693;
if (data == null) return null;
return Iso15693._(
tag.data.handle,
icManufacturerCode: data.icManufacturerCode,
icSerialNumber: data.icSerialNumber,
);
}