code: def test_delegate_to_runtime_error(self):
      with pytest.raises(RuntimeError):
          hook.MLEngineHook(
              gcp_conn_id="GCP_CONN_ID", delegate_to="delegate_to"
          )
  
imports: from __future__ import annotations
  import json
  from copy import deepcopy
  from unittest import mock
  from unittest.mock import PropertyMock
  import httplib2
  import pytest
  from aiohttp import ClientResponse
  from aiohttp.helpers import TimerNoop
  from googleapiclient.errors import HttpError
  from yarl import URL
  from airflow.exceptions import AirflowException
  from airflow.providers.google.cloud.hooks import mlengine
  from airflow.providers.google.cloud.hooks.mlengine import MLEngineAsyncHook
  from tests.providers.google.cloud.utils.base_gcp_mock import GCP_PROJECT_ID_HOOK_UNIT_TEST, mock_base_gcp_hook_default_project_id
label_desc: Use image node_id 1 for calling the TestMLEngineHook obj's underlying member method code with example usage: obj.test_delegate_to_runtime_error() without return types