code: def test_dag_example(self):
      self.run_dag("example_facebook_ads_to_gcs", CLOUD_DAG_FOLDER)
  
file_path: airflow/tests/providers/google/cloud/transfers/test_facebook_ads_to_gcs_system.py
imports: from __future__ import annotations
  import json
  import os
  from contextlib import contextmanager
  import pytest
  from airflow.exceptions import AirflowException
  from airflow.models import Connection
  from airflow.utils.process_utils import patch_environ
  from tests.providers.google.cloud.utils.gcp_authenticator import GCP_BIGQUERY_KEY
  from tests.test_utils.gcp_system_helpers import CLOUD_DAG_FOLDER, GoogleSystemTest, provide_gcp_context
label_desc: Use image node_id 1 for calling the TestFacebookAdsToGcsExampleDagsSystem obj's underlying member method code with example usage: obj.test_dag_example() without return types