code: def worker():
      """
      A worker like a data loader
      """
      if has_experiment():
          _experiment_singleton().worker()
  
imports: from pathlib import Path
  from typing import Optional, Set, Dict, overload
  import numpy
  from labml.configs import BaseConfigs
  from labml.internal.experiment import create_experiment, experiment_singleton, has_experiment
  from labml.internal.experiment.experiment_run import get_configs
  from labml.internal.monitor import monitor_singleton
label_desc: Use image node_id 2 for calling a global function with example usage: worker() without return types