code: def test_http_code(self):
      self.assertEqual(
          errors.UnauthenticatedError(challenge="Digest").http_code, 401
      )
  
imports: from tensorboard import errors
  from tensorboard import test
label_desc: Use image node_id 3 for calling the UnauthenticatedErrorTest obj's underlying member method code with example usage: obj.test_http_code() without return types