class_docstr: config unit test
docstr: load config unittest 
docstr_tok: ["load","config","unittest"]
code: def test_load_config(self):
      """load config unittest"""
      conf = utils.load_config(self.conf_file)
      self.assertDictEqual(conf, self.conf_true)
      config_dir = os.path.join(PACKAGE_ROOT_DIR, "configs/")
      for config_file in os.listdir(config_dir):
          config_file = os.path.join(config_dir, config_file)
          logging.info(f"Loading conf {config_file}")
          conf = utils.load_config(config_file)
          logging.info(conf)
  
file_path: delta/delta/utils/config_test.py
imports: import tempfile
  from absl import logging
  import os
  import delta.compat
  from delta import utils
  from delta import PACKAGE_ROOT_DIR
label_desc: Use image node_id 3 for calling the ConfigTest obj's underlying member method code with example usage: obj.test_load_config() without return types