code: def response(self) -> ResponseContext:
      return self._response_var.get()
  
imports: from __future__ import annotations
  import contextlib
  import contextvars
  import os
  import typing
  from abc import ABC
  from abc import abstractmethod
  from typing import TYPE_CHECKING
  import attr
  import starlette.datastructures
  from .utils.http import Cookie
label_desc: Use image node_id 4 for calling the ServiceContext obj's underlying member method code with example usage: obj.response() and returns: self