code: def _get_current_timestamp() -> int:
      import time
  
      return int(time.time() * 1000)
  
imports: from __future__ import annotations
  import atexit
  import logging
  import warnings
  from pathlib import Path
  from typing import Any, ClassVar, cast
  from typing_extensions import Literal
  import nni
  from nni.experiment import Experiment, RunMode
  from nni.nas.evaluator import Evaluator
  from nni.nas.execution import ExecutionEngine, TrainingServiceExecutionEngine, SequentialExecutionEngine
  from nni.nas.space import ExecutableModelSpace, BaseModelSpace, GraphModelSpace
  from nni.nas.strategy import Strategy
  from nni.nas.utils.serializer import get_default_serializer
  from nni.tools.nnictl.config_utils import Experiments
  from .config import NasExperimentConfig, ExecutionEngineConfig, TrainingServiceEngineConfig, CgoEngineConfig, SequentialEngineConfig, ModelFormatConfig, GraphModelFormatConfig, SimplifiedModelFormatConfig, RawModelFormatConfig
label_desc: Use image node_id 1 for calling a global function with example usage: _get_current_timestamp() and returns: int