'''simple docstring'''

from __future__ import annotations



def 							UpperCamelCase__			(			a__			,      a__      ):


						'''simple docstring'''






						_lowerCAmelCase										=[]
						create_all_state(1			,      a__			,      a__			,      []			,      a__      )
						return result



def 							UpperCamelCase__			(			a__			,      a__			,      a__			,      a__			,      a__			,      ):


						'''simple docstring'''






						if level == 0:
												total_list.append(current_list[:]      )
												return

						for i in range(a__			,      total_number - level + 2      ):
												current_list.append(a__      )
												create_all_state(i + 1			,      a__			,      level - 1			,      a__			,      a__      )
												current_list.pop()



def 							UpperCamelCase__			(			a__      ):


						'''simple docstring'''






						for i in total_list:
												print(*a__      )


if __name__ == "__main__":
							lowercase_     		= 4
							lowercase_     		= 2
							lowercase_     		= generate_all_combinations(n, k)
							print_all_state(total_list)






'''simple docstring'''

import os
from argparse import ArgumentParser, Namespace

from ..data import SingleSentenceClassificationProcessor as Processor
from ..pipelines import TextClassificationPipeline
from ..utils import is_tf_available, is_torch_available, logging
from . import BaseTransformersCLICommand


if not is_tf_available() and not is_torch_available():
							raise RuntimeError('''At least one of PyTorch or TensorFlow 2.0+ should be installed to use CLI training''')

# TF training parameters
lowercase_     		= False
lowercase_     		= False



def 							UpperCamelCase__			(			a__      ):


						'''simple docstring'''






						return TrainCommand(a__      )


class   SCREAMING_SNAKE_CASE			(						__lowercase):







		"""simple docstring"""






		@staticmethod
		def 		UpperCamelCase__       (   __A				) ->     Tuple:
								_lowerCAmelCase										=parser.add_parser('train'		,						help='CLI tool to train a model on a task.'				)

								train_parser.add_argument(
								    '--train_data'		,						type=__A		,						required=__A		,						help='path to train (and optionally evaluation) dataset as a csv with tab separated labels and sentences.'		,						)
								train_parser.add_argument(
								    '--column_label'		,						type=__A		,						default=0		,						help='Column of the dataset csv file with example labels.'				)
								train_parser.add_argument(
								    '--column_text'		,						type=__A		,						default=1		,						help='Column of the dataset csv file with example texts.'				)
								train_parser.add_argument(
								    '--column_id'		,						type=__A		,						default=2		,						help='Column of the dataset csv file with example ids.'				)
								train_parser.add_argument(
								    '--skip_first_row'		,						action='store_true'		,						help='Skip the first row of the csv file (headers).'				)

								train_parser.add_argument('--validation_data'		,						type=__A		,						default=''		,						help='path to validation dataset.'				)
								train_parser.add_argument(
								    '--validation_split'		,						type=__A		,						default=0.1		,						help='if validation dataset is not provided, fraction of train dataset to use as validation dataset.'		,						)

								train_parser.add_argument('--output'		,						type=__A		,						default='./'		,						help='path to saved the trained model.'				)

								train_parser.add_argument(
								    '--task'		,						type=__A		,						default='text_classification'		,						help='Task to train the model on.'				)
								train_parser.add_argument(
								    '--model'		,						type=__A		,						default='bert-base-uncased'		,						help='Model\'s name or path to stored model.'				)
								train_parser.add_argument('--train_batch_size'		,						type=__A		,						default=32		,						help='Batch size for training.'				)
								train_parser.add_argument('--valid_batch_size'		,						type=__A		,						default=64		,						help='Batch size for validation.'				)
								train_parser.add_argument('--learning_rate'		,						type=__A		,						default=3E-5		,						help='Learning rate.'				)
								train_parser.add_argument('--adam_epsilon'		,						type=__A		,						default=1E-08		,						help='Epsilon for Adam optimizer.'				)
								train_parser.set_defaults(func=__A				)






		def __init__(   self		,						__A				) ->     List[str]:
								_lowerCAmelCase										=logging.get_logger('transformers-cli/training'				)

								_lowerCAmelCase										='tf' if is_tf_available() else 'torch'

								os.makedirs(args.output		,						exist_ok=__A				)
								_lowerCAmelCase										=args.output

								_lowerCAmelCase										=args.column_label
								_lowerCAmelCase										=args.column_text
								_lowerCAmelCase										=args.column_id

								self.logger.info(F'''Loading {args.task} pipeline for {args.model}'''				)
								if args.task == "text_classification":
														_lowerCAmelCase										=TextClassificationPipeline.from_pretrained(args.model				)
								elif args.task == "token_classification":
														raise NotImplementedError
								elif args.task == "question_answering":
														raise NotImplementedError

								self.logger.info(F'''Loading dataset from {args.train_data}'''				)
								_lowerCAmelCase										=Processor.create_from_csv(
								    args.train_data		,						column_label=args.column_label		,						column_text=args.column_text		,						column_id=args.column_id		,						skip_first_row=args.skip_first_row		,						)
								_lowerCAmelCase										=None
								if args.validation_data:
														self.logger.info(F'''Loading validation dataset from {args.validation_data}'''				)
														_lowerCAmelCase										=Processor.create_from_csv(
														    args.validation_data		,						column_label=args.column_label		,						column_text=args.column_text		,						column_id=args.column_id		,						skip_first_row=args.skip_first_row		,						)

								_lowerCAmelCase										=args.validation_split
								_lowerCAmelCase										=args.train_batch_size
								_lowerCAmelCase										=args.valid_batch_size
								_lowerCAmelCase										=args.learning_rate
								_lowerCAmelCase										=args.adam_epsilon






		def 		UpperCamelCase__       (   self				) ->     List[str]:
								if self.framework == "tf":
														return self.run_tf()
								return self.run_torch()






		def 		UpperCamelCase__       (   self				) ->     Union[str, Any]:
								raise NotImplementedError






		def 		UpperCamelCase__       (   self				) ->     List[Any]:
								self.pipeline.fit(
								    self.train_dataset		,						validation_data=self.valid_dataset		,						validation_split=self.validation_split		,						learning_rate=self.learning_rate		,						adam_epsilon=self.adam_epsilon		,						train_batch_size=self.train_batch_size		,						valid_batch_size=self.valid_batch_size		,						)

								# Save trained pipeline
								self.pipeline.save_pretrained(self.output				)





