code: def test_wrong_hostname(runtime_cls):
      with pytest.raises(RuntimeFailToStart):
          with Deployment(
              get_deployment_args_with_host(
                  "inexisting.hostname.local", runtime_cls
              ),
              include_gateway=False,
          ) as pod:
              pass
  
imports: import json
  import os
  import pytest
  import yaml
  from jina import Document, DocumentArray, Executor, requests
  from jina.clients.request import request_generator
  from jina.constants import __default_executor__, __default_host__
  from jina.enums import PollingType
  from jina.excepts import RuntimeFailToStart
  from jina.orchestrate.deployments import Deployment
  from jina.parsers import set_deployment_parser, set_gateway_parser
  from jina.serve.networking.utils import send_request_sync
  from tests.unit.test_helper import MyDummyExecutor
label_desc: Use image node_id 7 for calling a global function with example usage: test_wrong_hostname(runtime_cls) without return types