code: def _ensure_not_reachable(__arg: Never):
      """
      Ensure that a code path is not reachable, like typing_extension.assert_never.
  
      This doesn't raise an exception so that we are forced to manually
      raise a more user friendly exception afterwards.
      """
      ...
  
imports: from __future__ import annotations
  from typing import Callable, Generator, List, TypeVar, Union, Tuple, Any, Sequence
  from typing_extensions import Literal, Never
  import numpy
  from numpy.typing import ArrayLike
label_desc: Use image node_id 1 for calling a global function with example usage: _ensure_not_reachable(__arg) without return types