code: def test_conn_attribute(self):
      hook = RedshiftDataHook()
      assert hasattr(hook, "conn")
      assert hook.conn.__class__.__name__ == "RedshiftDataAPIService"
      conn = hook.conn
      assert conn is hook.conn  # Cached property
      assert conn is hook.get_conn()
  
file_path: airflow/tests/providers/amazon/aws/hooks/test_redshift_data.py
imports: from __future__ import annotations
  import logging
  from unittest import mock
  import pytest
  from airflow.providers.amazon.aws.hooks.redshift_data import RedshiftDataHook
label_desc: Use image node_id 1 for calling the TestRedshiftDataHook obj's underlying member method code with example usage: obj.test_conn_attribute() without return types