code: def test_execute(
      self,
      mocks_csv_writer,
      mock_tempfile,
      mock_gcs_hook,
      mock_ads_hook,
  ):
      filename = "test.csv"
      file_object = mock_tempfile.return_value.__enter__.return_value
      file_object.name = filename
      accounts = ["a", "b", "c"]
      mock_ads_hook.return_value.list_accessible_customers.return_value = (
          accounts
      )
  
      op = GoogleAdsListAccountsOperator(
          gcp_conn_id=gcp_conn_id,
          google_ads_conn_id=google_ads_conn_id,
          object_name=GCS_OBJ_PATH,
          bucket=BUCKET,
          task_id="run_operator",
          impersonation_chain=IMPERSONATION_CHAIN,
          api_version=api_version,
      )
      op.execute({})
  
      mock_ads_hook.assert_called_once_with(
          gcp_conn_id=gcp_conn_id,
          google_ads_conn_id=google_ads_conn_id,
          api_version=api_version,
      )
      mock_gcs_hook.assert_called_once_with(
          gcp_conn_id=gcp_conn_id,
          impersonation_chain=IMPERSONATION_CHAIN,
      )
  
      mock_ads_hook.return_value.list_accessible_customers.assert_called_once_with()
      mocks_csv_writer.assert_called_once_with(file_object)
      mocks_csv_writer.return_value.writerows.assert_called_once_with(
          accounts
      )
      file_object.flush.assert_called_once_with()
  
      mock_gcs_hook.return_value.upload.assert_called_once_with(
          bucket_name=BUCKET,
          object_name=GCS_OBJ_PATH,
          filename=filename,
          gzip=False,
      )
  
imports: from __future__ import annotations
  from unittest import mock
  from airflow.providers.google.ads.operators.ads import GoogleAdsListAccountsOperator
label_desc: Use image node_id 1 for calling the TestGoogleAdsListAccountsOperator obj's underlying member method code with example usage: obj.test_execute(mocks_csv_writer, mock_tempfile, mock_gcs_hook, mock_ads_hook) without return types