code: def _make_peekable(stream):
      """return stream as an object with a peek() method"""
      import io
  
      if hasattr(stream, "peek"):
          return stream
      if not (hasattr(stream, "tell") and hasattr(stream, "seek")):
          try:
              return io.BufferedReader(stream)
          except Exception:
              pass
      return _PeekableReader(stream)
  
imports: import re
  import os
  import sys
  import warnings
  from dill import _dill, Pickler, Unpickler
  from ._dill import BuiltinMethodType, FunctionType, MethodType, ModuleType, TypeType, _import_module, _is_builtin_module, _is_imported_module, _main_module, _reverse_typemap, __builtin__
  from typing import Optional, Union
  import pathlib
  import tempfile
label_desc: Use image node_id 7 for calling a global function with example usage: _make_peekable(stream) and returns: _PeekableReader, stream, io