code: 
  # Usage:
  # ./gen-card-allenai-wmt19.py
  
  import os
  from pathlib import Path
  
  
  
  def 		UpperCamelCase    (					_UpperCAmelCase     :      Union[str, Any]   , _UpperCAmelCase     :      Optional[int]   , _UpperCAmelCase     :      Union[str, Any]   , _UpperCAmelCase     :      Tuple     )      -> Union[str, Any]:
  
  
  
  
  
  
  						'''simple docstring'''
  
  						_lowercase					:  List[str]    			=      {
  						    "en": "Machine learning is great, isn't it?",
  						    "ru": "Машинное обучение - это здорово, не так ли?",
  						    "de": "Maschinelles Lernen ist großartig, nicht wahr?",
  						}
  
  						# BLUE scores as follows:
  						# "pair": [fairseq, transformers]
  						_lowercase					:  Optional[int]    			=      {
  						    "wmt19-de-en-6-6-base": [0, 38.37],
  						    "wmt19-de-en-6-6-big": [0, 39.90],
  						}
  						_lowercase					:  int    			=      f"""{src_lang}-{tgt_lang}"""
  
  						_lowercase					:  Union[str, Any]    			=      f"""
  ---
  
  language:
  - {src_lang}
  - {tgt_lang}
  thumbnail:
  tags:
  - translation
  - wmt19
  - allenai
  license: apache-2.0
  datasets:
  - wmt19
  metrics:
  - bleu
  ---
  
  # FSMT
  
  ## Model description
  
  This is a ported version of fairseq-based [wmt19 transformer](https://github.com/jungokasai/deep-shallow/) for {src_lang}-{tgt_lang}.
  
  For more details, please, see [Deep Encoder, Shallow Decoder: Reevaluating the Speed-Quality Tradeoff in Machine Translation](https://arxiv.org/abs/2006.10369).
  
  2 models are available:
  
  * [wmt19-de-en-6-6-big](https://huggingface.co/allenai/wmt19-de-en-6-6-big)
  * [wmt19-de-en-6-6-base](https://huggingface.co/allenai/wmt19-de-en-6-6-base)
  
  
  ## Intended uses & limitations
  
  #### How to use
  
  ```python
  from transformers import FSMTForConditionalGeneration, FSMTTokenizer
  mname = \"allenai/{model_name}\"
  tokenizer = FSMTTokenizer.from_pretrained(mname)
  model = FSMTForConditionalGeneration.from_pretrained(mname)
  
  input = \"{texts[src_lang]}\"
  input_ids = tokenizer.encode(input, return_tensors=\"pt\")
  outputs = model.generate(input_ids)
  decoded = tokenizer.decode(outputs[0], skip_special_tokens=True)
  print(decoded) # {texts[tgt_lang]}
  
  ```
  
  #### Limitations and bias
  
  
  ## Training data
  
  Pretrained weights were left identical to the original model released by allenai. For more details, please, see the [paper](https://arxiv.org/abs/2006.10369).
  
  ## Eval results
  
  Here are the BLEU scores:
  
  model   |  transformers
  -------|---------
  {model_name}  |  {scores[model_name][1]}
  
  The score was calculated using this code:
  
  ```bash
  git clone https://github.com/huggingface/transformers
  cd transformers
  export PAIR={pair}
  export DATA_DIR=data/$PAIR
  export SAVE_DIR=data/$PAIR
  export BS=8
  export NUM_BEAMS=5
  mkdir -p $DATA_DIR
  sacrebleu -t wmt19 -l $PAIR --echo src > $DATA_DIR/val.source
  sacrebleu -t wmt19 -l $PAIR --echo ref > $DATA_DIR/val.target
  echo $PAIR
  PYTHONPATH=\"src:examples/seq2seq\" python examples/seq2seq/run_eval.py allenai/{model_name} $DATA_DIR/val.source $SAVE_DIR/test_translations.txt --reference_path $DATA_DIR/val.target --score_path $SAVE_DIR/test_bleu.json --bs $BS --task translation --num_beams $NUM_BEAMS
  ```
  
  ## Data Sources
  
  - [training, etc.](http://www.statmt.org/wmt19/)
  - [test set](http://matrix.statmt.org/test_sets/newstest2019.tgz?1556572561)
  
  
  ### BibTeX entry and citation info
  
  ```
  @misc{{kasai2020deep,
      title={{Deep Encoder, Shallow Decoder: Reevaluating the Speed-Quality Tradeoff in Machine Translation}},
      author={{Jungo Kasai and Nikolaos Pappas and Hao Peng and James Cross and Noah A. Smith}},
      year={{2020}},
      eprint={{2006.10369}},
      archivePrefix={{arXiv}},
      primaryClass={{cs.CL}}
  }}
  ```
  
  """
  						model_card_dir.mkdir(parents=_UpperCAmelCase   , exist_ok=_UpperCAmelCase     )
  						_lowercase					:  int    			=      os.path.join(_UpperCAmelCase   , "README.md"     )
  						print(f"""Generating {path}"""     )
  						with open(_UpperCAmelCase   , "w"   , encoding="utf-8"     ) as f:
  												f.write(_UpperCAmelCase     )
  
  
  # make sure we are under the root of the project
  UpperCamelCase_	:    Optional[int]  					=       Path(__file__).resolve().parent.parent.parent
  UpperCamelCase_	:    Any  					=       repo_dir / """model_cards"""
  
  for model_name in ["wmt19-de-en-6-6-base", "wmt19-de-en-6-6-big"]:
  							UpperCamelCase_	:    Union[str, Any]  					=       model_cards_dir / """allenai""" / model_name
  							write_model_card(model_card_dir, src_lang="""de""", tgt_lang="""en""", model_name=model_name)
  
  
  
  
  
style_context: 
  import os
  import unittest
  
  from transformers.models.bertweet.tokenization_bertweet import VOCAB_FILES_NAMES, BertweetTokenizer
  
  from ...test_tokenization_common import TokenizerTesterMixin
  
  
  
  
  class      __lowercase	(	__snake_case      ,   unittest.TestCase					):
  	_A   			=      BertweetTokenizer
  	_A   			=      False
  
  
  
  
  
  
  	def 			_a(self							:   Tuple						)   -> Any:
  							super().setUp()
  
  							# Adapted from Sennrich et al. 2015 and https://github.com/rsennrich/subword-nmt
  							_lowercase					:  Tuple    			=      ["I", "m", "V@@", "R@@", "r", "e@@"]
  							_lowercase					:  Tuple    			=      dict(zip(snake_case			,  range(len(snake_case						)						)						)						)
  							_lowercase					:  Tuple    			=      ["#version: 0.2", "a m</w>"]
  							_lowercase					:  Optional[Any]    			=      {"unk_token": "<unk>"}
  
  							_lowercase					:  int    			=      os.path.join(self.tmpdirname			,  VOCAB_FILES_NAMES["vocab_file"]						)
  							_lowercase					:  Optional[int]    			=      os.path.join(self.tmpdirname			,  VOCAB_FILES_NAMES["merges_file"]						)
  							with open(self.vocab_file			,  "w"			,  encoding="utf-8"						) as fp:
  													for token in vocab_tokens:
  																			fp.write(F"""{token} {vocab_tokens[token]}\n"""						)
  							with open(self.merges_file			,  "w"			,  encoding="utf-8"						) as fp:
  													fp.write("\n".join(snake_case						)						)
  
  
  
  
  
  
  	def 			_a(self							:   List[Any]			,  **snake_case							:   Tuple						)   -> Union[str, Any]:
  							kwargs.update(self.special_tokens_map						)
  							return BertweetTokenizer.from_pretrained(self.tmpdirname			,  **snake_case						)
  
  
  
  
  
  
  	def 			_a(self							:   Any			,  snake_case							:   Any						)   -> List[Any]:
  							_lowercase					:  Tuple    			=      "I am VinAI Research"
  							_lowercase					:  Optional[int]    			=      "I <unk> m V<unk> <unk> <unk> I Re<unk> e<unk> <unk> <unk> <unk>"
  							return input_text, output_text
  
  
  
  
  
  
  	def 			_a(self							:   str						)   -> Optional[int]:
  							_lowercase					:  str    			=      BertweetTokenizer(self.vocab_file			,  self.merges_file			,  **self.special_tokens_map						)
  							_lowercase					:  Optional[Any]    			=      "I am VinAI Research"
  							_lowercase					:  str    			=      "I a@@ m V@@ i@@ n@@ A@@ I R@@ e@@ s@@ e@@ a@@ r@@ c@@ h".split()
  							_lowercase					:  Tuple    			=      tokenizer.tokenize(snake_case						)
  							self.assertListEqual(snake_case			,  snake_case						)
  
  							_lowercase					:  str    			=      tokens + [tokenizer.unk_token]
  
  							_lowercase					:  str    			=      [4, 3, 5, 6, 3, 3, 3, 4, 7, 9, 3, 9, 3, 3, 3, 3, 3]
  							self.assertListEqual(tokenizer.convert_tokens_to_ids(snake_case						)			,  snake_case						)
  
  
  
  
  