code: def _set_context(obj, stack):
      """Helper function to place an object on a context stack"""
      if stack is None:
          return obj
      return stack.enter_context(obj)
  
imports: from __future__ import annotations
  import json
  from typing import Protocol, runtime_checkable
  from uuid import uuid4
  import fsspec
  import pandas
  from fsspec.implementations.local import LocalFileSystem
  from packaging.version import parse
label_desc: Use image node_id 6 for calling a global function with example usage: _set_context(obj, stack) and returns: stack, obj