code: def test_response_200(self, session):
      pool_model = Pool(
          pool="test_pool_a", slots=3, include_deferred=True
      )
      session.add(pool_model)
      session.commit()
      response = self.client.get(
          "/api/v1/pools/test_pool_a",
          environ_overrides={"REMOTE_USER": "test"},
      )
      assert response.status_code == 200
      assert {
          "name": "test_pool_a",
          "slots": 3,
          "occupied_slots": 0,
          "running_slots": 0,
          "queued_slots": 0,
          "scheduled_slots": 0,
          "deferred_slots": 0,
          "open_slots": 3,
          "description": None,
          "include_deferred": True,
      } == response.json
  
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 1 for calling the TestGetPool obj's underlying member method code with example usage: obj.test_response_200(session) without return types