code: def getenv_int(key: str) -> Optional[int]:
      val = os.environ.get(key)
      return val if val is None else int(val)
  
imports: import json
  import os
  from typing import Any, Dict, Iterable, List, Optional, Union
  from determined import gpu
label_desc: Use image node_id 1 for calling a global function with example usage: getenv_int(key) and returns: unknown