code: def teardown_method(self) -> None:
      clear_db_pools()
  
imports: from __future__ import annotations
  import pytest
  from airflow.api_connexion.exceptions import EXCEPTIONS_LINK_MAP
  from airflow.models.pool import Pool
  from airflow.security import permissions
  from airflow.utils.session import provide_session
  from tests.test_utils.api_connexion_utils import assert_401, create_user, delete_user
  from tests.test_utils.config import conf_vars
  from tests.test_utils.db import clear_db_pools
label_desc: Use image node_id 2 for calling the TestBasePoolEndpoints obj's underlying member method code with example usage: obj.teardown_method() without return types