docs: def _insert_timestamp(self, slug, max_length=255):
          """Appends a timestamp integer to the given slug, yet ensuring the
          result is less than the specified max_length.
          """
          timestamp = str(int(time.time()))
          ts_len = len(timestamp) + 1
          while len(slug) + ts_len > max_length:
              slug = '-'.join(slug.split('-')[:-1])
          slug = '-'.join([slug, timestamp])
          return slug