code: def install_slow_fail_kernel():
      return _install_kernel(
          "problemtest-slow",
          extra_env={"STARTUP_DELAY": "5", "FAIL_ON_START": "1"},
      )
  
file_path: jupyter_client/tests/test_restarter.py
imports: import asyncio
  import json
  import os
  import sys
  from concurrent.futures import Future
  import pytest
  from jupyter_core import paths
  from traitlets.config.loader import Config
  from traitlets.log import get_logger
  from jupyter_client.ioloop import AsyncIOLoopKernelManager, IOLoopKernelManager
label_desc: Use image node_id 4 for calling a global function with example usage: install_slow_fail_kernel() and returns: _install_kernel