parseExpiryDate method
Implementation
void parseExpiryDate(String line) {
final parts = line.split('Date:');
final expiryDateString = parts[1].trim();
final datePart = expiryDateString.substring(0, 25);
expiryDate = DateTime.parse(datePart); // 'yyyy-MM-dd hh:mm:ss+');
production = !line.contains('TEST_CERT');
}