code: def test_simplify_replacements(self):
      self.assertEqual(
          simplify_replacements([("Bert", "NewBert")]),
          [("Bert", "NewBert")],
      )
      self.assertEqual(
          simplify_replacements(
              [("Bert", "NewBert"), ("bert", "new-bert")]
          ),
          [("Bert", "NewBert"), ("bert", "new-bert")],
      )
      self.assertEqual(
          simplify_replacements(
              [
                  ("BertConfig", "NewBertConfig"),
                  ("Bert", "NewBert"),
                  ("bert", "new-bert"),
              ]
          ),
          [("Bert", "NewBert"), ("bert", "new-bert")],
      )
  
imports: import os
  import re
  import tempfile
  import unittest
  from pathlib import Path
  import transformers
  from transformers.commands.add_new_model_like import ModelPatterns, _re_class_func, add_content_to_file, add_content_to_text, clean_frameworks_in_init, duplicate_doc_file, duplicate_module, filter_framework_files, find_base_model_checkpoint, get_model_files, get_module_from_file, parse_module_content, replace_model_patterns, retrieve_info_for_model, retrieve_model_classes, simplify_replacements
  from transformers.testing_utils import require_flax, require_tf, require_torch
label_desc: Use image node_id 8 for calling the TestAddNewModelLike obj's underlying member method code with example usage: obj.test_simplify_replacements() without return types