docs: def save(self, *args, **kwargs):
          """
          automatically update updated date field
          """
          # auto fill updated field with current time unless explicitly disabled
          auto_update = kwargs.get('auto_update', True)
          if auto_update:
              self.updated = now()
  
          # remove eventual auto_update
          if 'auto_update' in kwargs:
              kwargs.pop('auto_update')
  
          super(BaseDate, self).save(*args, **kwargs)