code: def _spec_of(arg):
      if hasattr(arg, "data_ptr"):
          return arg.data_ptr() % JITFunction.divisibility == 0
      elif isinstance(arg, int):
          return (arg % 16 == 0, arg == 1)
      return (arg is None,)
  
imports: from __future__ import annotations, division
  import ast
  import hashlib
  import inspect
  import os
  import textwrap
  from collections import defaultdict, namedtuple
  from functools import cached_property
  from typing import Callable, Generic, Iterable, List, Optional, TypeVar, Union, cast, overload
  from ..runtime.driver import driver
label_desc: Use image node_id 2 for calling the JITFunction obj's underlying member method code with example usage: obj._spec_of(arg) and returns: unknown, unknown, unknown,  unknown