




class 		lowercase							:

     def __init__(						self       )		->							Optional[int]:
           _A							:  Optional[Any]    =		{}

     def       a__			(						self       )		->							None:
           print(self.vertex       )
           for i in self.vertex:
                 print(_a	,  """ -> """	,  """ -> """.join([str(_a       ) for j in self.vertex[i]]       )       )

     def       a__			(						self	,  _a	,  _a       )		->							None:
           # check if vertex is already present,
           if from_vertex in self.vertex:
                 self.vertex[from_vertex].append(_a       )
           else:
                 # else make a new vertex
                 _A							:  List[str]    =		[to_vertex]

     def       a__			(						self       )		->							None:
           # visited array for storing already visited nodes
           _A							:  Dict    =		[False] * len(self.vertex       )

           # call the recursive helper function
           for i in range(len(self.vertex       )       ):
                 if not visited[i]:
                       self.dfs_recursive(_a	,  _a       )



     def       a__			(						self	,  _a	,  _a       )		->							None:
           # mark start vertex as visited
           _A							:  Tuple    =		True

           print(_a	,  end=""" """       )

           # Recur for all the vertices that are adjacent to this node
           for i in self.vertex:
                 if not visited[i]:
                       self.dfs_recursive(_a	,  _a       )


if __name__ == "__main__":
  _snake_case            = Graph()
  g.add_edge(0, 1)
  g.add_edge(0, 2)
  g.add_edge(1, 2)
  g.add_edge(2, 0)
  g.add_edge(2, 3)
  g.add_edge(3, 3)

  g.print_graph()
  print("DFS:")
  g.dfs()

  # OUTPUT:
  # 0  ->  1 -> 2
  # 1  ->  2
  # 2  ->  0 -> 3
  # 3  ->  3
  # DFS:
  #  0 1 2 3







import os
import re
import shutil
import sys
import tempfile
import unittest

import black


_snake_case            = os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
sys.path.append(os.path.join(git_repo_path, "utils"))

import check_copies  # noqa: E402


# This is the reference code that will be used in the tests.
# If BertLMPredictionHead is changed in modeling_bert.py, this code needs to be manually updated.
_snake_case            = "    def __init__(self, config):\n        super().__init__()\n        self.transform = BertPredictionHeadTransform(config)\n\n        # The output weights are the same as the input embeddings, but there is\n        # an output-only bias for each token.\n        self.decoder = nn.Linear(config.hidden_size, config.vocab_size, bias=False)\n\n        self.bias = nn.Parameter(torch.zeros(config.vocab_size))\n\n        # Need a link between the two variables so that the bias is correctly resized with `resize_token_embeddings`\n        self.decoder.bias = self.bias\n\n    def forward(self, hidden_states):\n        hidden_states = self.transform(hidden_states)\n        hidden_states = self.decoder(hidden_states)\n        return hidden_states\n"







class 		lowercase							(     unittest.TestCase	):

     def       a__			(						self       )		->							Union[str, Any]:
           _A							:  List[str]    =		tempfile.mkdtemp()
           os.makedirs(os.path.join(self.transformer_dir	,  """models/bert/"""       )       )
           _A							:  str    =		self.transformer_dir
           shutil.copy(
               os.path.join(_a	,  """src/transformers/models/bert/modeling_bert.py"""       )	,  os.path.join(self.transformer_dir	,  """models/bert/modeling_bert.py"""       )	,  )

     def       a__			(						self       )		->							Optional[int]:
           _A							:  List[str]    =		"""src/transformers"""
           shutil.rmtree(self.transformer_dir       )

     def       a__			(						self	,  _a	,  _a	,  _a	,  _a=None       )		->							Optional[Any]:
           _A							:  Optional[Any]    =		comment + F'''\nclass {class_name}(nn.Module):\n''' + class_code
           if overwrite_result is not None:
                 _A							:  List[str]    =		comment + F'''\nclass {class_name}(nn.Module):\n''' + overwrite_result
           _A							:  List[str]    =		black.Mode(target_versions={black.TargetVersion.PYaa}	,  line_length=119       )
           _A							:  Optional[int]    =		black.format_str(_a	,  mode=_a       )
           _A							:  Optional[Any]    =		os.path.join(self.transformer_dir	,  """new_code.py"""       )
           with open(_a	,  """w"""	,  newline="""\n"""       ) as f:
                 f.write(_a       )
           if overwrite_result is None:
                 self.assertTrue(len(check_copies.is_copy_consistent(_a       )       ) == 0       )
           else:
                 check_copies.is_copy_consistent(f.name	,  overwrite=_a       )
                 with open(_a	,  """r"""       ) as f:
                       self.assertTrue(f.read()	,  _a       )

     def       a__			(						self       )		->							str:
           _A							:  Union[str, Any]    =		check_copies.find_code_in_transformers("""models.bert.modeling_bert.BertLMPredictionHead"""       )
           self.assertEqual(_a	,  _a       )

     def       a__			(						self       )		->							int:
           # Base copy consistency
           self.check_copy_consistency(
               """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead"""	,  """BertLMPredictionHead"""	,  REFERENCE_CODE + """\n"""	,  )

           # With no empty line at the end
           self.check_copy_consistency(
               """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead"""	,  """BertLMPredictionHead"""	,  _a	,  )

           # Copy consistency with rename
           self.check_copy_consistency(
               """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->TestModel"""	,  """TestModelLMPredictionHead"""	,  re.sub("""Bert"""	,  """TestModel"""	,  _a       )	,  )

           # Copy consistency with a really long name
           _A							:  List[str]    =		"""TestModelWithAReallyLongNameBecauseSomePeopleLikeThatForSomeReason"""
           self.check_copy_consistency(
               F'''# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->{long_class_name}'''	,  F'''{long_class_name}LMPredictionHead'''	,  re.sub("""Bert"""	,  _a	,  _a       )	,  )

           # Copy consistency with overwrite
           self.check_copy_consistency(
               """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->TestModel"""	,  """TestModelLMPredictionHead"""	,  _a	,  overwrite_result=re.sub("""Bert"""	,  """TestModel"""	,  _a       )	,  )



     def       a__			(						self       )		->							Tuple:
           _A							:  Union[str, Any]    =		check_copies.LOCALIZED_READMES["""README_zh-hans.md"""]

           _A							:  str    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (from Google Research and the"""
               """ Toyota Technological Institute at Chicago) released with the paper [ALBERT: A Lite BERT for"""
               """ Self-supervised Learning of Language Representations](https://arxiv.org/abs/1909.11942), by Zhenzhong"""
               """ Lan, Mingda Chen, Sebastian Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut.\n1."""
               """ **[DistilBERT](https://huggingface.co/transformers/model_doc/distilbert.html)** (from HuggingFace),"""
               """ released together with the paper [DistilBERT, a distilled version of BERT: smaller, faster, cheaper and"""
               """ lighter](https://arxiv.org/abs/1910.01108) by Victor Sanh, Lysandre Debut and Thomas Wolf. The same"""
               """ method has been applied to compress GPT2 into"""
               """ [DistilGPT2](https://github.com/huggingface/transformers/tree/main/examples/distillation), RoBERTa into"""
               """ [DistilRoBERTa](https://github.com/huggingface/transformers/tree/main/examples/distillation),"""
               """ Multilingual BERT into"""
               """ [DistilmBERT](https://github.com/huggingface/transformers/tree/main/examples/distillation) and a German"""
               """ version of DistilBERT.\n1. **[ELECTRA](https://huggingface.co/transformers/model_doc/electra.html)**"""
               """ (from Google Research/Stanford University) released with the paper [ELECTRA: Pre-training text encoders"""
               """ as discriminators rather than generators](https://arxiv.org/abs/2003.10555) by Kevin Clark, Minh-Thang"""
               """ Luong, Quoc V. Le, Christopher D. Manning."""
           )
           _A							:  str    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
               """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
               """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
               """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
           )
           _A							:  Any    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
               """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
               """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
               """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n1."""
               """ **[DistilBERT](https://huggingface.co/transformers/model_doc/distilbert.html)** (来自 HuggingFace) 伴随论文"""
               """ [DistilBERT, a distilled version of BERT: smaller, faster, cheaper and"""
               """ lighter](https://arxiv.org/abs/1910.01108) 由 Victor Sanh, Lysandre Debut and Thomas Wolf 发布。 The same"""
               """ method has been applied to compress GPT2 into"""
               """ [DistilGPT2](https://github.com/huggingface/transformers/tree/main/examples/distillation), RoBERTa into"""
               """ [DistilRoBERTa](https://github.com/huggingface/transformers/tree/main/examples/distillation),"""
               """ Multilingual BERT into"""
               """ [DistilmBERT](https://github.com/huggingface/transformers/tree/main/examples/distillation) and a German"""
               """ version of DistilBERT.\n1. **[ELECTRA](https://huggingface.co/transformers/model_doc/electra.html)** (来自"""
               """ Google Research/Stanford University) 伴随论文 [ELECTRA: Pre-training text encoders as discriminators rather"""
               """ than generators](https://arxiv.org/abs/2003.10555) 由 Kevin Clark, Minh-Thang Luong, Quoc V. Le,"""
               """ Christopher D. Manning 发布。\n"""
           )

           _A    ,     _A							:  Tuple    =		check_copies.convert_to_localized_md(
               _a	,  _a	,  localized_readme["""format_model_list"""]       )

           self.assertFalse(_a       )
           self.assertEqual(_a	,  _a       )

           _A    ,     _A							:  List[str]    =		check_copies.convert_to_localized_md(
               _a	,  _a	,  localized_readme["""format_model_list"""]       )

           # Check whether the number of models is equal to README.md after conversion.
           self.assertTrue(_a       )

           _A							:  Tuple    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (from Google Research and the"""
               """ Toyota Technological Institute at Chicago) released with the paper [ALBERT: A Lite BERT for"""
               """ Self-supervised Learning of Language Representations](https://arxiv.org/abs/1909.11942), by Zhenzhong"""
               """ Lan, Mingda Chen, Sebastian Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut."""
           )
           _A							:  Dict    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/main/model_doc/albert.html)** (来自 Google Research and"""
               """ the Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
               """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
               """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
           )
           _A							:  Optional[Any]    =		(
               """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
               """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
               """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
               """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
           )

           _A    ,     _A							:  Optional[int]    =		check_copies.convert_to_localized_md(
               _a	,  _a	,  localized_readme["""format_model_list"""]       )

           # Check if the model link is synchronized.
           self.assertEqual(_a	,  _a       )

