






import csv
import os

import pytest

from datasets import Dataset, DatasetDict, Features, NamedSplit, Value
from datasets.io.csv import CsvDatasetReader, CsvDatasetWriter

from ..utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    List[Any]      ,     __magic_name__   :    Dict   )						->     Tuple:






	"""simple docstring"""



	assert isinstance(UpperCamelCase__      ,     UpperCamelCase__   )
	assert dataset.num_rows == 4
	assert dataset.num_columns == 3
	assert dataset.column_names == ["col_1", "col_2", "col_3"]
	for feature, expected_dtype in expected_features.items():
		assert dataset.features[feature].dtype == expected_dtype

@pytest.mark.parametrize("""keep_in_memory"""      ,     [False, True]   )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Union[str, Any]      ,     __magic_name__   :    List[str]      ,     __magic_name__   :    List[str]   )						->     Union[str, Any]:






	"""simple docstring"""



	UpperCamelCase	:List[str]		=      tmp_path / """cache"""
	UpperCamelCase	:int		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	with assert_arrow_memory_increases() if keep_in_memory else assert_arrow_memory_doesnt_increase():
		UpperCamelCase	:Optional[Any]		=      CsvDatasetReader(UpperCamelCase__      ,     cache_dir=UpperCamelCase__      ,     keep_in_memory=UpperCamelCase__   ).read()
	_check_csv_dataset(UpperCamelCase__      ,     UpperCamelCase__   )

@pytest.mark.parametrize(
    """features"""      ,     [
        None,
        {"""col_1""": """string""", """col_2""": """int64""", """col_3""": """float64"""},
        {"""col_1""": """string""", """col_2""": """string""", """col_3""": """string"""},
        {"""col_1""": """int32""", """col_2""": """int32""", """col_3""": """int32"""},
        {"""col_1""": """float32""", """col_2""": """float32""", """col_3""": """float32"""},
    ]      ,     )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Dict      ,     __magic_name__   :    Optional[int]      ,     __magic_name__   :    Tuple   )						->     Union[str, Any]:






	"""simple docstring"""



	UpperCamelCase	:str		=      tmp_path / """cache"""
	# CSV file loses col_1 string dtype information: default now is "int64" instead of "string"
	UpperCamelCase	:int		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	UpperCamelCase	:List[Any]		=      features.copy() if features else default_expected_features
	UpperCamelCase	:Dict		=      (
	    Features({feature: Value(UpperCamelCase__   ) for feature, dtype in features.items()}   ) if features is not None else None
	)
	UpperCamelCase	:Union[str, Any]		=      CsvDatasetReader(UpperCamelCase__      ,     features=UpperCamelCase__      ,     cache_dir=UpperCamelCase__   ).read()
	_check_csv_dataset(UpperCamelCase__      ,     UpperCamelCase__   )

@pytest.mark.parametrize("""split"""      ,     [None, NamedSplit("""train"""   ), """train""", """test"""]   )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    str      ,     __magic_name__   :    Optional[Any]      ,     __magic_name__   :    Dict   )						->     Optional[Any]:






	"""simple docstring"""



	UpperCamelCase	:Any		=      tmp_path / """cache"""
	UpperCamelCase	:List[Any]		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	UpperCamelCase	:Union[str, Any]		=      CsvDatasetReader(UpperCamelCase__      ,     cache_dir=UpperCamelCase__      ,     split=UpperCamelCase__   ).read()
	_check_csv_dataset(UpperCamelCase__      ,     UpperCamelCase__   )
	assert dataset.split == split if split else "train"

@pytest.mark.parametrize("""path_type"""      ,     [str, list]   )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Optional[Any]      ,     __magic_name__   :    Dict      ,     __magic_name__   :    Dict   )						->     Union[str, Any]:






	"""simple docstring"""



	if issubclass(UpperCamelCase__      ,     UpperCamelCase__   ):
		UpperCamelCase	:Any		=      csv_path
	elif issubclass(UpperCamelCase__      ,     UpperCamelCase__   ):
		UpperCamelCase	:List[Any]		=      [csv_path]
	UpperCamelCase	:int		=      tmp_path / """cache"""
	UpperCamelCase	:Union[str, Any]		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	UpperCamelCase	:List[Any]		=      CsvDatasetReader(UpperCamelCase__      ,     cache_dir=UpperCamelCase__   ).read()
	_check_csv_dataset(UpperCamelCase__      ,     UpperCamelCase__   )

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    List[Any]      ,     __magic_name__   :    Any      ,     __magic_name__   :    Any=("train",)   )						->     Any:






	"""simple docstring"""



	assert isinstance(UpperCamelCase__      ,     UpperCamelCase__   )
	for split in splits:
		UpperCamelCase	:List[Any]		=      dataset_dict[split]
		assert dataset.num_rows == 4
		assert dataset.num_columns == 3
		assert dataset.column_names == ["col_1", "col_2", "col_3"]
		for feature, expected_dtype in expected_features.items():
			assert dataset.features[feature].dtype == expected_dtype

@pytest.mark.parametrize("""keep_in_memory"""      ,     [False, True]   )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    str      ,     __magic_name__   :    int      ,     __magic_name__   :    Tuple   )						->     Union[str, Any]:






	"""simple docstring"""



	UpperCamelCase	:Dict		=      tmp_path / """cache"""
	UpperCamelCase	:Tuple		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	with assert_arrow_memory_increases() if keep_in_memory else assert_arrow_memory_doesnt_increase():
		UpperCamelCase	:Any		=      CsvDatasetReader({"""train""": csv_path}      ,     cache_dir=UpperCamelCase__      ,     keep_in_memory=UpperCamelCase__   ).read()
	_check_csv_datasetdict(UpperCamelCase__      ,     UpperCamelCase__   )

@pytest.mark.parametrize(
    """features"""      ,     [
        None,
        {"""col_1""": """string""", """col_2""": """int64""", """col_3""": """float64"""},
        {"""col_1""": """string""", """col_2""": """string""", """col_3""": """string"""},
        {"""col_1""": """int32""", """col_2""": """int32""", """col_3""": """int32"""},
        {"""col_1""": """float32""", """col_2""": """float32""", """col_3""": """float32"""},
    ]      ,     )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    str      ,     __magic_name__   :    Union[str, Any]      ,     __magic_name__   :    Any   )						->     Optional[Any]:






	"""simple docstring"""



	UpperCamelCase	:int		=      tmp_path / """cache"""
	# CSV file loses col_1 string dtype information: default now is "int64" instead of "string"
	UpperCamelCase	:Dict		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	UpperCamelCase	:Dict		=      features.copy() if features else default_expected_features
	UpperCamelCase	:Optional[Any]		=      (
	    Features({feature: Value(UpperCamelCase__   ) for feature, dtype in features.items()}   ) if features is not None else None
	)
	UpperCamelCase	:str		=      CsvDatasetReader({"""train""": csv_path}      ,     features=UpperCamelCase__      ,     cache_dir=UpperCamelCase__   ).read()
	_check_csv_datasetdict(UpperCamelCase__      ,     UpperCamelCase__   )

@pytest.mark.parametrize("""split"""      ,     [None, NamedSplit("""train"""   ), """train""", """test"""]   )
def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Union[str, Any]      ,     __magic_name__   :    Optional[int]      ,     __magic_name__   :    Tuple   )						->     int:






	"""simple docstring"""



	if split:
		UpperCamelCase	:Any		=      {split: csv_path}
	else:
		UpperCamelCase	:Union[str, Any]		=      {"""train""": csv_path, """test""": csv_path}
	UpperCamelCase	:Dict		=      tmp_path / """cache"""
	UpperCamelCase	:Optional[int]		=      {"""col_1""": """int64""", """col_2""": """int64""", """col_3""": """float64"""}
	UpperCamelCase	:List[str]		=      CsvDatasetReader(UpperCamelCase__      ,     cache_dir=UpperCamelCase__   ).read()
	_check_csv_datasetdict(UpperCamelCase__      ,     UpperCamelCase__      ,     splits=list(path.keys()   )   )
	assert all(dataset[split].split == split for split in path.keys()   )

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Union[str, Any]   )						->     int:






	"""simple docstring"""



	with open(UpperCamelCase__      ,     encoding="""utf-8"""   ) as csvfile:
		yield from csv.reader(UpperCamelCase__   )

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    List[str]      ,     __magic_name__   :    Tuple   )						->     List[Any]:






	"""simple docstring"""



	UpperCamelCase	:Dict		=      tmp_path / """cache"""
	UpperCamelCase	:Tuple		=      os.path.join(UpperCamelCase__      ,     """tmp.csv"""   )
	UpperCamelCase	:Dict		=      CsvDatasetReader({"""train""": csv_path}      ,     cache_dir=UpperCamelCase__   ).read()
	CsvDatasetWriter(dataset["""train"""]      ,     UpperCamelCase__      ,     num_proc=1   ).write()

	UpperCamelCase	:int		=      iter_csv_file(UpperCamelCase__   )
	UpperCamelCase	:Optional[Any]		=      iter_csv_file(UpperCamelCase__   )

	for rowa, rowa in zip(UpperCamelCase__      ,     UpperCamelCase__   ):
		assert rowa == rowa

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Any      ,     __magic_name__   :    Optional[int]   )						->     int:






	"""simple docstring"""



	UpperCamelCase	:Optional[int]		=      tmp_path / """cache"""
	UpperCamelCase	:str		=      os.path.join(UpperCamelCase__      ,     """tmp.csv"""   )
	UpperCamelCase	:str		=      CsvDatasetReader({"""train""": csv_path}      ,     cache_dir=UpperCamelCase__   ).read()
	CsvDatasetWriter(dataset["""train"""]      ,     UpperCamelCase__      ,     num_proc=2   ).write()

	UpperCamelCase	:str		=      iter_csv_file(UpperCamelCase__   )
	UpperCamelCase	:List[Any]		=      iter_csv_file(UpperCamelCase__   )

	for rowa, rowa in zip(UpperCamelCase__      ,     UpperCamelCase__   ):
		assert rowa == rowa

def   SCREAMING_SNAKE_CASE_				(				__magic_name__   :    Any      ,     __magic_name__   :    List[Any]   )						->     Union[str, Any]:






	"""simple docstring"""



	UpperCamelCase	:List[Any]		=      tmp_path / """cache"""
	UpperCamelCase	:Dict		=      os.path.join(UpperCamelCase__      ,     """tmp.csv"""   )
	UpperCamelCase	:str		=      CsvDatasetReader({"""train""": csv_path}      ,     cache_dir=UpperCamelCase__   ).read()
	with pytest.raises(UpperCamelCase__   ):
		CsvDatasetWriter(dataset["""train"""]      ,     UpperCamelCase__      ,     num_proc=0   )







import argparse
import logging
import os
from pathlib import Path
from typing import Any, Dict

import pytorch_lightning as pl
from pytorch_lightning.utilities import rank_zero_info

from transformers import (
    AdamW,
    AutoConfig,
    AutoModel,
    AutoModelForPreTraining,
    AutoModelForQuestionAnswering,
    AutoModelForSeqaSeqLM,
    AutoModelForSequenceClassification,
    AutoModelForTokenClassification,
    AutoModelWithLMHead,
    AutoTokenizer,
    PretrainedConfig,
    PreTrainedTokenizer,
)
from transformers.optimization import (
    Adafactor,
    get_cosine_schedule_with_warmup,
    get_cosine_with_hard_restarts_schedule_with_warmup,
    get_linear_schedule_with_warmup,
    get_polynomial_decay_schedule_with_warmup,
)
from transformers.utils.versions import require_version


UpperCAmelCase_   				=  logging.getLogger(__name__)

require_version("""pytorch_lightning>=1.0.4""")

UpperCAmelCase_   				=  {
    """base""": AutoModel,
    """sequence-classification""": AutoModelForSequenceClassification,
    """question-answering""": AutoModelForQuestionAnswering,
    """pretraining""": AutoModelForPreTraining,
    """token-classification""": AutoModelForTokenClassification,
    """language-modeling""": AutoModelWithLMHead,
    """summarization""": AutoModelForSeqaSeqLM,
    """translation""": AutoModelForSeqaSeqLM,
}


# update this and the import above to support new schedulers from transformers.optimization
UpperCAmelCase_   				=  {
    """linear""": get_linear_schedule_with_warmup,
    """cosine""": get_cosine_schedule_with_warmup,
    """cosine_w_restarts""": get_cosine_with_hard_restarts_schedule_with_warmup,
    """polynomial""": get_polynomial_decay_schedule_with_warmup,
    # '': get_constant_schedule,             # not supported for now
    # '': get_constant_schedule_with_warmup, # not supported for now
}
UpperCAmelCase_   				=  sorted(arg_to_scheduler.keys())
UpperCAmelCase_   				=  """{""" + """, """.join(arg_to_scheduler_choices) + """}"""
class       UpperCamelCase_		(	pl.LightningModule       ):




					def __init__(		self					,    lowerCAmelCase_					,    lowerCAmelCase_=None					,    lowerCAmelCase_="base"					,    lowerCAmelCase_=None					,    lowerCAmelCase_=None					,    lowerCAmelCase_=None					,    **lowerCAmelCase_					,    )		->				Union[str, Any]:
										super().__init__()
										# TODO: move to self.save_hyperparameters()
										# self.save_hyperparameters()
										# can also expand arguments into trainer signature for easier reading

										self.save_hyperparameters(lowerCAmelCase_	)
										_snake_case						=					0
										_snake_case						=					Path(self.hparams.output_dir	)
										_snake_case						=					self.hparams.cache_dir if self.hparams.cache_dir else None
										if config is None:
															_snake_case						=					AutoConfig.from_pretrained(
															    self.hparams.config_name if self.hparams.config_name else self.hparams.model_name_or_path					,    **({'num_labels': num_labels} if num_labels is not None else {})					,    cache_dir=lowerCAmelCase_					,    **lowerCAmelCase_					,    )
										else:
															_snake_case						=					config

										_snake_case						=					('encoder_layerdrop', 'decoder_layerdrop', 'dropout', 'attention_dropout')
										for p in extra_model_params:
															if getattr(self.hparams					,    lowerCAmelCase_					,    lowerCAmelCase_	):
																				assert hasattr(self.config					,    lowerCAmelCase_	), F'''model config doesn\'t have a `{p}` attribute'''
																				setattr(self.config					,    lowerCAmelCase_					,    getattr(self.hparams					,    lowerCAmelCase_	)	)

										if tokenizer is None:
															_snake_case						=					AutoTokenizer.from_pretrained(
															    self.hparams.tokenizer_name if self.hparams.tokenizer_name else self.hparams.model_name_or_path					,    cache_dir=lowerCAmelCase_					,    )
										else:
															_snake_case						=					tokenizer
										_snake_case						=					MODEL_MODES[mode]
										if model is None:
															_snake_case						=					self.model_type.from_pretrained(
															    self.hparams.model_name_or_path					,    from_tf=bool('.ckpt' in self.hparams.model_name_or_path	)					,    config=self.config					,    cache_dir=lowerCAmelCase_					,    )
										else:
															_snake_case						=					model




					def 						lowerCAmelCase      (		self					,    *lowerCAmelCase_					,    **lowerCAmelCase_	)		->				str:
										_snake_case						=					self.model_type.from_pretrained(*lowerCAmelCase_					,    **lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self	)		->				List[Any]:
										_snake_case						=					arg_to_scheduler[self.hparams.lr_scheduler]
										_snake_case						=					get_schedule_func(
										    self.opt					,    num_warmup_steps=self.hparams.warmup_steps					,    num_training_steps=self.total_steps()	)
										_snake_case						=					{'scheduler': scheduler, 'interval': 'step', 'frequency': 1}
										return scheduler




					def 						lowerCAmelCase      (		self	)		->				int:
										_snake_case						=					self.model
										_snake_case						=					['bias', 'LayerNorm.weight']
										_snake_case						=					[
										    {
										        'params': [p for n, p in model.named_parameters() if not any(nd in n for nd in no_decay	)],
										        'weight_decay': self.hparams.weight_decay,
										    },
										    {
										        'params': [p for n, p in model.named_parameters() if any(nd in n for nd in no_decay	)],
										        'weight_decay': 0.0,
										    },
										]
										if self.hparams.adafactor:
															_snake_case						=					Adafactor(
															    lowerCAmelCase_					,    lr=self.hparams.learning_rate					,    scale_parameter=lowerCAmelCase_					,    relative_step=lowerCAmelCase_	)

										else:
															_snake_case						=					AdamW(
															    lowerCAmelCase_					,    lr=self.hparams.learning_rate					,    eps=self.hparams.adam_epsilon	)
										_snake_case						=					optimizer

										_snake_case						=					self.get_lr_scheduler()

										return [optimizer], [scheduler]




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_					,    lowerCAmelCase_	)		->				List[str]:
										return self.validation_step(lowerCAmelCase_					,    lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				Optional[int]:
										return self.validation_end(lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self	)		->				int:
										_snake_case						=					max(1					,    self.hparams.gpus	)  # TODO: consider num_tpu_cores
										_snake_case						=					self.hparams.train_batch_size * self.hparams.accumulate_grad_batches * num_devices
										return (self.dataset_size / effective_batch_size) * self.hparams.max_epochs




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				Tuple:
										if mode == "test":
															_snake_case						=					len(self.test_dataloader().dataset	)
										else:
															_snake_case						=					self.get_dataloader('train'					,    self.hparams.train_batch_size					,    shuffle=lowerCAmelCase_	)
															_snake_case						=					len(self.train_dataloader().dataset	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_					,    lowerCAmelCase_					,    lowerCAmelCase_ = False	)		->				Dict:
										raise NotImplementedError('You must implement this for your task'	)




					def 						lowerCAmelCase      (		self	)		->				Any:
										return self.train_loader




					def 						lowerCAmelCase      (		self	)		->				int:
										return self.get_dataloader('dev'					,    self.hparams.eval_batch_size					,    shuffle=lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self	)		->				Tuple:
										return self.get_dataloader('test'					,    self.hparams.eval_batch_size					,    shuffle=lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				int:
										return os.path.join(
										    self.hparams.data_dir					,    'cached_{}_{}_{}'.format(
										        lowerCAmelCase_					,    list(filter(lowerCAmelCase_					,    self.hparams.model_name_or_path.split('/'	)	)	).pop()					,    str(self.hparams.max_seq_length	)					,    )					,    )




					@pl.utilities.rank_zero_only
					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				None:
										_snake_case						=					self.output_dir.joinpath('best_tfmr'	)
										_snake_case						=					self.step_count
										self.model.save_pretrained(lowerCAmelCase_	)
										self.tokenizer.save_pretrained(lowerCAmelCase_	)






					@staticmethod
					def 						lowerCAmelCase      (		lowerCAmelCase_					,    lowerCAmelCase_	)		->				Dict:
										parser.add_argument(
										    '--model_name_or_path'					,    default=lowerCAmelCase_					,    type=lowerCAmelCase_					,    required=lowerCAmelCase_					,    help='Path to pretrained model or model identifier from huggingface.co/models'					,    )
										parser.add_argument(
										    '--config_name'					,    default=''					,    type=lowerCAmelCase_					,    help='Pretrained config name or path if not the same as model_name'	)
										parser.add_argument(
										    '--tokenizer_name'					,    default=lowerCAmelCase_					,    type=lowerCAmelCase_					,    help='Pretrained tokenizer name or path if not the same as model_name'					,    )
										parser.add_argument(
										    '--cache_dir'					,    default=''					,    type=lowerCAmelCase_					,    help='Where do you want to store the pre-trained models downloaded from huggingface.co'					,    )
										parser.add_argument(
										    '--encoder_layerdrop'					,    type=lowerCAmelCase_					,    help='Encoder layer dropout probability (Optional). Goes into model.config'					,    )
										parser.add_argument(
										    '--decoder_layerdrop'					,    type=lowerCAmelCase_					,    help='Decoder layer dropout probability (Optional). Goes into model.config'					,    )
										parser.add_argument(
										    '--dropout'					,    type=lowerCAmelCase_					,    help='Dropout probability (Optional). Goes into model.config'					,    )
										parser.add_argument(
										    '--attention_dropout'					,    type=lowerCAmelCase_					,    help='Attention dropout probability (Optional). Goes into model.config'					,    )
										parser.add_argument('--learning_rate'					,    default=5E-5					,    type=lowerCAmelCase_					,    help='The initial learning rate for Adam.'	)
										parser.add_argument(
										    '--lr_scheduler'					,    default='linear'					,    choices=lowerCAmelCase_					,    metavar=lowerCAmelCase_					,    type=lowerCAmelCase_					,    help='Learning rate scheduler'					,    )
										parser.add_argument('--weight_decay'					,    default=0.0					,    type=lowerCAmelCase_					,    help='Weight decay if we apply some.'	)
										parser.add_argument('--adam_epsilon'					,    default=1E-8					,    type=lowerCAmelCase_					,    help='Epsilon for Adam optimizer.'	)
										parser.add_argument('--warmup_steps'					,    default=0					,    type=lowerCAmelCase_					,    help='Linear warmup over warmup_steps.'	)
										parser.add_argument('--num_workers'					,    default=4					,    type=lowerCAmelCase_					,    help='kwarg passed to DataLoader'	)
										parser.add_argument('--num_train_epochs'					,    dest='max_epochs'					,    default=3					,    type=lowerCAmelCase_	)
										parser.add_argument('--train_batch_size'					,    default=32					,    type=lowerCAmelCase_	)
										parser.add_argument('--eval_batch_size'					,    default=32					,    type=lowerCAmelCase_	)
										parser.add_argument('--adafactor'					,    action='store_true'	)





class       UpperCamelCase_		(	pl.Callback       ):




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_					,    lowerCAmelCase_	)		->				int:
										_snake_case						=					trainer.lr_schedulers[0]['scheduler']
										_snake_case						=					{F'''lr_group_{i}''': lr for i, lr in enumerate(lr_scheduler.get_lr()	)}
										pl_module.logger.log_metrics(lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_					,    lowerCAmelCase_	)		->				str:
										rank_zero_info('***** Validation results *****'	)
										_snake_case						=					trainer.callback_metrics
										# Log results
										for key in sorted(lowerCAmelCase_	):
															if key not in ["log", "progress_bar"]:
																				rank_zero_info('{} = {}\n'.format(lowerCAmelCase_					,    str(metrics[key]	)	)	)






					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_					,    lowerCAmelCase_	)		->				List[Any]:
										rank_zero_info('***** Test results *****'	)
										_snake_case						=					trainer.callback_metrics
										# Log and save results to file
										_snake_case						=					os.path.join(pl_module.hparams.output_dir					,    'test_results.txt'	)
										with open(lowerCAmelCase_					,    'w'	) as writer:
															for key in sorted(lowerCAmelCase_	):
																				if key not in ["log", "progress_bar"]:
																									rank_zero_info('{} = {}\n'.format(lowerCAmelCase_					,    str(metrics[key]	)	)	)
																									writer.write('{} = {}\n'.format(lowerCAmelCase_					,    str(metrics[key]	)	)	)





def     lowerCamelCase__  (  UpperCamelCase__      :							Dict							,     UpperCamelCase__      :							Union[str, Any]    )      ->			None:



					'''simple docstring'''




					parser.add_argument(
					    '--output_dir'							,     default=UpperCamelCase__							,     type=UpperCamelCase__							,     required=UpperCamelCase__							,     help='The output directory where the model predictions and checkpoints will be written.'							,     )
					parser.add_argument(
					    '--fp16'							,     action='store_true'							,     help='Whether to use 16-bit (mixed) precision (through NVIDIA apex) instead of 32-bit'							,     )

					parser.add_argument(
					    '--fp16_opt_level'							,     type=UpperCamelCase__							,     default='O2'							,     help=(
					        'For fp16: Apex AMP optimization level selected in [\'O0\', \'O1\', \'O2\', and \'O3\'].'
					        'See details at https://nvidia.github.io/apex/amp.html'
					    )							,     )
					parser.add_argument('--n_tpu_cores'							,     dest='tpu_cores'							,     type=UpperCamelCase__    )
					parser.add_argument('--max_grad_norm'							,     dest='gradient_clip_val'							,     default=1.0							,     type=UpperCamelCase__							,     help='Max gradient norm'    )
					parser.add_argument('--do_train'							,     action='store_true'							,     help='Whether to run training.'    )
					parser.add_argument('--do_predict'							,     action='store_true'							,     help='Whether to run predictions on the test set.'    )
					parser.add_argument(
					    '--gradient_accumulation_steps'							,     dest='accumulate_grad_batches'							,     type=UpperCamelCase__							,     default=1							,     help='Number of updates steps to accumulate before performing a backward/update pass.'							,     )
					parser.add_argument('--seed'							,     type=UpperCamelCase__							,     default=42							,     help='random seed for initialization'    )
					parser.add_argument(
					    '--data_dir'							,     default=UpperCamelCase__							,     type=UpperCamelCase__							,     required=UpperCamelCase__							,     help='The input data dir. Should contain the training files for the CoNLL-2003 NER task.'							,     )





def     lowerCamelCase__  (  UpperCamelCase__      :							BaseTransformer							,     UpperCamelCase__      :							argparse.Namespace							,     UpperCamelCase__      :							Optional[Any]=None							,     UpperCamelCase__      :							Union[str, Any]=True							,     UpperCamelCase__      :							Optional[Any]=[]							,     UpperCamelCase__      :							int=None							,     UpperCamelCase__      :							Tuple=None							,     **UpperCamelCase__      :							List[Any]							,     )      ->			Any:



					'''simple docstring'''




					pl.seed_everything(args.seed    )

					# init model
					_snake_case						=					Path(model.hparams.output_dir    )
					odir.mkdir(exist_ok=UpperCamelCase__    )

					# add custom checkpoints
					if checkpoint_callback is None:
										_snake_case						=					pl.callbacks.ModelCheckpoint(
										    filepath=args.output_dir							,     prefix='checkpoint'							,     monitor='val_loss'							,     mode='min'							,     save_top_k=1    )
					if early_stopping_callback:
										extra_callbacks.append(UpperCamelCase__    )
					if logging_callback is None:
										_snake_case						=					LoggingCallback()

					_snake_case						=					{}

					# TODO: remove with PyTorch 1.6 since pl uses native amp
					if args.fpaa:
										_snake_case						=					16
										_snake_case						=					args.fpaa_opt_level

					if args.gpus > 1:
										_snake_case						=					'ddp'

					_snake_case						=					args.accumulate_grad_batches
					_snake_case						=					extra_train_kwargs.get('accelerator'							,     UpperCamelCase__    )
					_snake_case						=					extra_train_kwargs.get('profiler'							,     UpperCamelCase__    )

					_snake_case						=					pl.Trainer.from_argparse_args(
					    UpperCamelCase__							,     weights_summary=UpperCamelCase__							,     callbacks=[logging_callback] + extra_callbacks							,     logger=UpperCamelCase__							,     checkpoint_callback=UpperCamelCase__							,     **UpperCamelCase__							,     )

					if args.do_train:
										trainer.fit(UpperCamelCase__    )

					return trainer



