code: def test_delegate_to_runtime_error(self):
      with pytest.raises(RuntimeError):
          CloudComposerAsyncHook(
              gcp_conn_id="GCP_CONN_ID", delegate_to="delegate_to"
          )
  
file_path: airflow/tests/providers/google/cloud/hooks/test_cloud_composer.py
imports: from __future__ import annotations
  from unittest import mock
  from unittest.mock import AsyncMock
  import pytest
  from google.api_core.gapic_v1.method import DEFAULT
  from google.cloud.orchestration.airflow.service_v1 import EnvironmentsAsyncClient
  from airflow.providers.google.cloud.hooks.cloud_composer import CloudComposerAsyncHook, CloudComposerHook
label_desc: Use image node_id 1 for calling the TestCloudComposerAsyncHook obj's underlying member method code with example usage: obj.test_delegate_to_runtime_error() without return types