code: def __init__(
      self,
      engine: SequentialExecutionEngine,
      model: ExecutableModelSpace,
  ):
      self.engine = engine
      self.model = model
  
imports: from __future__ import annotations
  import logging
  import time
  import traceback
  from typing import Iterable, List, cast
  from typing_extensions import Literal
  import nni
  from nni.runtime.trial_command_channel import set_default_trial_command_channel, get_default_trial_command_channel, TrialCommandChannel
  from nni.nas.space import ExecutableModelSpace, ModelStatus
  from nni.typehint import ParameterRecord, Parameters, TrialMetric
  from .engine import ExecutionEngine
  from .event import FinalMetricEvent, IntermediateMetricEvent, TrainingEndEvent
label_desc: Use image node_id 1 to create a new SequentialTrialCommandChannel object from inherited base classes: TrialCommandChannel with example: obj = SequentialTrialCommandChannel(engine, model)