public function __construct($name, $value = null)
{
$this->name = PersistentField::stringField(100)->forget()->key()->lock();
$this->value = PersistentField::stringField(100)->forget()->lock();
if (empty($name)) {
throw new Exception("The property must have a name");
}
$this->name = $name;
$this->value = $value;
}
