code: def _get_extra_path_for_msvc():
      cl_exe = shutil.which("cl.exe")
      if cl_exe:
          # The compiler is already on PATH, no extra path needed.
          return None
  
      try:
          import setuptools
  
          vctools = setuptools.msvc.EnvironmentInfo(
              platform.machine()
          ).VCTools
      except Exception as e:
          warnings.warn(
              f"Failed to auto-detect cl.exe path: {type(e)}: {e}"
          )
          return None
  
      for path in vctools:
          cl_exe = os.path.join(path, "cl.exe")
          if os.path.exists(cl_exe):
              return path
      warnings.warn(f"cl.exe could not be found in {vctools}")
      return None
  
imports: import copy
  import hashlib
  import math
  import os
  import platform
  import re
  import shutil
  import subprocess
  import sys
  import tempfile
  import warnings
  from cupy.cuda import device
  from cupy.cuda import function
  from cupy.cuda import get_rocm_path
  from cupy_backends.cuda.api import driver
  from cupy_backends.cuda.api import runtime
  from cupy_backends.cuda.libs import nvrtc
  from cupy import _util
label_desc: Use image node_id 2 for calling a global function with example usage: _get_extra_path_for_msvc() and returns: None, None, None, path