code: def test_load_configs(self):
      # Check that all the pre-prepared configs are valid.
      config_files = []
  
      for pattern in (
          "repro_singleseq*.yaml",
          "repro_multiseq*.yaml",
          "overfit_singleseq*.yaml",
      ):
          config_files.extend(
              [
                  f
                  for f in IMPLICITRON_CONFIGS_DIR.glob(pattern)
                  if not f.name.endswith("_base.yaml")
              ]
          )
  
      for file in config_files:
          with self.subTest(file.name):
              with initialize_config_dir(
                  config_dir=str(IMPLICITRON_CONFIGS_DIR)
              ):
                  compose(file.name)
  
imports: import os
  import tempfile
  import unittest
  from pathlib import Path
  import torch
  from hydra import compose, initialize_config_dir
  from omegaconf import OmegaConf
  from projects.implicitron_trainer.impl.optimizer_factory import ImplicitronOptimizerFactory
  from ..None import experiment
  from .utils import interactive_testing_requested, intercept_logs
label_desc: Use image node_id 5 for calling the TestExperiment obj's underlying member method code with example usage: obj.test_load_configs() without return types