validate method

void validate()

Implementation

void validate() {
  if (format != qrFormat) {
    throw const FormatException('QR format must be "qr".');
  }
  _qrValue(rawValue);
  _qrValueType(valueType);
  if (!scannedAtUtc.isUtc) {
    throw const FormatException('QR scannedAtUtc must be UTC.');
  }
}