code: def _get_cuda_path():
      # Use environment variable
      cuda_path = os.environ.get(
          "CUDA_PATH", ""
      )  # Nvidia default on Windows
      if os.path.exists(cuda_path):
          return cuda_path
  
      # Use nvcc path
      nvcc_path = shutil.which("nvcc")
      if nvcc_path is not None:
          return os.path.dirname(os.path.dirname(nvcc_path))
  
      # Use typical path
      if os.path.exists("/usr/local/cuda"):
          return "/usr/local/cuda"
  
      return None
  
imports: import ctypes
  import importlib.metadata
  import json
  import os
  import os.path
  import re
  import shutil
  import sys
  from typing import Any, Dict, List, Optional, Tuple
  import warnings
label_desc: Use image node_id 7 for calling a global function with example usage: _get_cuda_path() and returns: None, cuda_path, os, str