code: def test_get_pool(self):
      response = self.client.get(
          f"/api/experimental/pools/{self.pool.pool}",
      )
      self.assert_deprecated(response)
      assert response.status_code == 200
      assert (
          json.loads(response.data.decode("utf-8"))
          == self.pool.to_json()
      )
  
imports: from __future__ import annotations
  import json
  import os
  import re
  from datetime import timedelta
  from unittest import mock
  from urllib.parse import quote_plus
  import pytest
  from airflow import settings
  from airflow.api.common.experimental.trigger_dag import trigger_dag
  from airflow.models import DagBag, DagRun, Pool, TaskInstance
  from airflow.models.serialized_dag import SerializedDagModel
  from airflow.settings import Session
  from airflow.utils.timezone import datetime, parse, utcnow
  from airflow.version import version
  from tests.test_utils.db import clear_db_pools
label_desc: Use image node_id 3 for calling the TestPoolApiExperimental obj's underlying member method code with example usage: obj.test_get_pool() without return types