checkForThumbnail method

Implementation

String? checkForThumbnail(MediaMessage message) {
  try {
    String? smallUrl = getThumbnailGeneration(message);
    Attachment? attachment = message.attachment;
    if (attachment != null) {
      if (smallUrl != null) {
        return smallUrl;
      }
    }
  } catch (_) {}

  return null;
}