code: def test_should_respond_404_when_option_not_exist(self, mock_as_dict):
      response = self.client.get(
          "/api/v1/config/section/smtp/option/smtp_mail_from1",
          headers={"Accept": "application/json"},
          environ_overrides={"REMOTE_USER": "test"},
      )
  
      assert response.status_code == 404
      assert (
          "The option [smtp/smtp_mail_from1] is not found in config."
          in response.json["detail"]
      )
  
imports: from __future__ import annotations
  import textwrap
  from unittest.mock import patch
  import pytest
  from airflow.security import permissions
  from tests.test_utils.api_connexion_utils import assert_401, create_user, delete_user
  from tests.test_utils.config import conf_vars
label_desc: Use image node_id 5 for calling the TestGetValue obj's underlying member method code with example usage: obj.test_should_respond_404_when_option_not_exist(mock_as_dict) without return types