docs: def loads_with_timestamp(value, salt):
      """Returns the unsigned value along with its timestamp, the time when it
      got dumped."""
      try:
          signing.loads(value, salt=salt, max_age=-999999)
      except signing.SignatureExpired as e:
          age = float(str(e).split('Signature age ')[1].split(' >')[0])
          timestamp = timezone.now() - datetime.timedelta(seconds=age)
          return timestamp, signing.loads(value, salt=salt)