code: def _dummy_trainable(config):
      for x in range(20):
          score = _dummy_objective(x, config["a"], config["b"])
  
          tune.report(score=score)
  
file_path: autogluon/core/tests/unittests/hpo/test_ray_hpo.py
imports: import tempfile
  import pytest
  from ray import tune
  from autogluon.core.hpo.ray_hpo import AutommRayTuneAdapter, RayTuneAdapter, TabularRayTuneAdapter, run
  from autogluon.core.hpo.ray_tune_constants import SCHEDULER_PRESETS, SEARCHER_PRESETS
label_desc: Use image node_id 2 for calling a global function with example usage: _dummy_trainable(config) without return types