code: def init_params(self, params):
      self._params = copy.deepcopy(params)
  
file_path: nni/test/ut/sdk/helper/trial_command_channel.py
imports: from __future__ import annotations
  import copy
  from typing_extensions import Literal
  from nni.runtime.trial_command_channel import TrialCommandChannel
  from nni.typehint import TrialMetric, ParameterRecord
label_desc: Use image node_id 2 for calling the TestHelperTrialCommandChannel obj's underlying member method code with example usage: obj.init_params(params) without return types