code: def unimplemented(msg: str) -> NoReturn:
      assert msg != os.environ.get("BREAK", False)
      raise Unsupported(msg)
  
imports: import os
  import textwrap
  from enum import auto, Enum
  from traceback import extract_stack, format_exc, format_list, StackSummary
  from typing import cast, NoReturn, Optional
  import torch._guards
  from .None import config
  from .config import is_fbcode
  from .utils import counters
  import logging
label_desc: Use image node_id 2 for calling a global function with example usage: unimplemented(msg) without return types