code: def update_search_space(self, search_space):
      self.search_space = search_space
  
file_path: nni/test/ut/sdk/test_msg_dispatcher.py
imports: import json
  from io import BytesIO
  from unittest import TestCase, main
  from nni.runtime import msg_dispatcher_base
  from nni.runtime.msg_dispatcher import MsgDispatcher
  from nni.runtime.tuner_command_channel.legacy import *
  from nni.tuner import Tuner
  from nni.utils import extract_scalar_reward
label_desc: Use image node_id 4 for calling the NaiveTuner obj's underlying member method code with example usage: obj.update_search_space(search_space) without return types