code: def __init__(self):
      self.param = 0
      self.trial_results = []
      self.search_space = None
      self._accept_customized_trials()
  
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 1 to create a new NaiveTuner object from inherited base classes: Tuner with example: obj = NaiveTuner()