docs: def save(self, *args, **kwargs):
          """sets uuid for url
  
          :param args: inline arguments (optional)
          :param kwargs: keyword arguments (optional)
          :return: `super.save()`
          """
          if not self.id:  # this is a totally new instance, create uuid value
              self.url_uuid = str(uuid.uuid4()).replace("-", "")
          super(ObfuscatedUrlInfo, self).save(*args, **kwargs)