code: def test_config_dict(self):
      config = Config(
          model="BPR", dataset="ml-100k", config_dict=parameters_dict
      )
  
      self.assertEqual(config["model"], "BPR")
      self.assertEqual(config["learning_rate"], 0.2)
      self.assertEqual(config["topk"], [50, 100])
      self.assertEqual(
          config["eval_args"]["split"], {"RS": [0.8, 0.1, 0.1]}
      )
      self.assertEqual(config["eval_args"]["order"], "RO")
      self.assertEqual(config["eval_args"]["mode"]["valid"], "full")
      self.assertEqual(config["eval_args"]["mode"]["test"], "full")
      self.assertEqual(config["eval_args"]["group_by"], "user")
  
file_path: RecBole/tests/config/test_config.py
imports: import os
  import unittest
  from recbole.config import Config
label_desc: Use image node_id 5 for calling the TestConfigClass obj's underlying member method code with example usage: obj.test_config_dict() without return types