code: def _check_integer_or_list(arg, name):
      """Validate arguments that should be an integer or a list.
  
      Always returns a list.
      """
      if not isinstance(arg, list):
          arg = [
              _ensure_int(
                  arg, name=name, must_be="an integer or a list"
              )
          ]
      return arg
  
imports: import numbers
  import operator
  import os
  import re
  from builtins import input
  from difflib import get_close_matches
  from importlib import import_module
  from pathlib import Path
  import numpy
  from ..defaults import HEAD_SIZE_DEFAULT, _handle_default
  from ..fixes import _compare_version, _median_complex
  from ._logging import _record_warnings, _verbose_safe_false, logger, verbose, warn
label_desc: Use image node_id 2 for calling a global function with example usage: _check_integer_or_list(arg, name) and returns: arg