code: def _save(self, name, content):
          
          name = self.clean_name(name)  # to change to UNIX style path on windows if necessary
          if not self._exists_with_etag(name, content):
              content.seek(0)
              super(StaticCloudinaryStorage, self)._save(name, content)
          return self._prepend_prefix(name)
docs: Saves only when a file with a name and a content is not already uploaded to Cloudinary.