


from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_tf_available,
    is_torch_available,
    is_vision_available,
)


lowerCAmelCase__      		= {
    'configuration_convnext': ['CONVNEXT_PRETRAINED_CONFIG_ARCHIVE_MAP', 'ConvNextConfig', 'ConvNextOnnxConfig']
}

try:
    if not is_vision_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    lowerCAmelCase__      		= ['ConvNextFeatureExtractor']
    lowerCAmelCase__      		= ['ConvNextImageProcessor']

try:
    if not is_torch_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    lowerCAmelCase__      		= [
        'CONVNEXT_PRETRAINED_MODEL_ARCHIVE_LIST',
        'ConvNextForImageClassification',
        'ConvNextModel',
        'ConvNextPreTrainedModel',
        'ConvNextBackbone',
    ]

try:
    if not is_tf_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    lowerCAmelCase__      		= [
        'TFConvNextForImageClassification',
        'TFConvNextModel',
        'TFConvNextPreTrainedModel',
    ]

if TYPE_CHECKING:
    from .configuration_convnext import CONVNEXT_PRETRAINED_CONFIG_ARCHIVE_MAP, ConvNextConfig, ConvNextOnnxConfig

    try:
        if not is_vision_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .feature_extraction_convnext import ConvNextFeatureExtractor
        from .image_processing_convnext import ConvNextImageProcessor

    try:
        if not is_torch_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .modeling_convnext import (
            CONVNEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
            ConvNextBackbone,
            ConvNextForImageClassification,
            ConvNextModel,
            ConvNextPreTrainedModel,
        )

    try:
        if not is_tf_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .modeling_tf_convnext import TFConvNextForImageClassification, TFConvNextModel, TFConvNextPreTrainedModel


else:
    import sys

    lowerCAmelCase__      		= _LazyModule(__name__, globals()['__file__'], _import_structure)







import argparse
import logging
import os

import datasets
import tensorflow as tf

from transformers import AutoTokenizer


lowerCAmelCase_    =				logging.getLogger(__name__)






def      lowerCamelCase_						(				)		->						Optional[Any]:






				"""simple docstring"""


				snake_case_						:    List[str]				=  argparse.ArgumentParser(
				    description='''Prepare TFRecord shards from pre-tokenized samples of the wikitext dataset.''' )
				parser.add_argument(
				    '''--dataset_name''' ,				type=_UpperCamelCase ,				default='''wikitext''' ,				help='''Name of the training. Explore datasets at: hf.co/datasets.''' ,				)
				parser.add_argument(
				    '''--dataset_config''' ,				type=_UpperCamelCase ,				default='''wikitext-103-raw-v1''' ,				help='''Configuration name of the dataset.''' )
				parser.add_argument(
				    '''--tokenizer_name_or_path''' ,				type=_UpperCamelCase ,				default='''sayakpaul/unigram-tokenizer-wikitext''' ,				help='''Tokenizer identifier. Can be a local filepath or a Hub identifier.''' ,				)
				parser.add_argument(
				    '''--shard_size''' ,				type=_UpperCamelCase ,				default=1_000 ,				help='''Number of entries to go in a single shard.''' ,				)
				parser.add_argument('''--split''' ,				type=_UpperCamelCase ,				default='''train''' ,				choices=['''train''', '''test''', '''validation'''] )
				parser.add_argument(
				    '''--limit''' ,				default=_UpperCamelCase ,				type=_UpperCamelCase ,				help='''Limit the number of shards (used for debugging).''' ,				)
				parser.add_argument(
				    '''--max_length''' ,				type=_UpperCamelCase ,				default=512 ,				help='''Maximum sequence length. For training on TPUs, it helps to have a maximum'''
				    ''' sequence length that is a multiple of 8.''' ,				)
				parser.add_argument(
				    '''--output_dir''' ,				default='''tf-tpu''' ,				type=_UpperCamelCase ,				help='''Output directory where the TFRecord shards will be saved. If the'''
				    ''' path is appended with `gs://` (\'gs://tf-tpu\', for example) then the TFRecord'''
				    ''' shards will be directly saved to a Google Cloud Storage bucket.''' ,				)

				snake_case_						:    List[Any]				=  parser.parse_args()
				return args






def      lowerCamelCase_						(				_UpperCamelCase )		->						Tuple:






				"""simple docstring"""


				def fn(_UpperCamelCase ):
								return tokenizer(examples['''text'''] )

				return fn






def      lowerCamelCase_						(				_UpperCamelCase )		->						Union[str, Any]:






				"""simple docstring"""


				snake_case_						:    Any				=  []
				for i in range(len(tokenized_data['''input_ids'''] ) ):
								snake_case_						:    Any				=  {
								    '''input_ids''': tf.train.Feature(intaa_list=tf.train.IntaaList(value=tokenized_data['''input_ids'''][i] ) ),
								    '''attention_mask''': tf.train.Feature(
								        intaa_list=tf.train.IntaaList(value=tokenized_data['''attention_mask'''][i] ) ),
								}
								snake_case_						:    Optional[int]				=  tf.train.Features(feature=_UpperCamelCase )
								snake_case_						:    Optional[Any]				=  tf.train.Example(features=_UpperCamelCase )
								snake_case_						:    Optional[Any]				=  example.SerializeToString()
								records.append(_UpperCamelCase )
				return records






def      lowerCamelCase_						(				_UpperCamelCase )		->						Optional[int]:






				"""simple docstring"""


				snake_case_						:    int				=  datasets.load_dataset(args.dataset_name ,				args.dataset_config ,				split=args.split )

				if args.limit is not None:
								snake_case_						:    Union[str, Any]				=  min(len(_UpperCamelCase ) ,				args.limit )
								snake_case_						:    int				=  dataset.select(range(_UpperCamelCase ) )
								print(f'''Limiting the dataset to {args.limit} entries.''' )

				snake_case_						:    Dict				=  AutoTokenizer.from_pretrained(args.tokenizer_name_or_path )

				# Handle output directory creation.
				# For serializing into a Google Cloud Storage Bucket, one needs to first
				# create a bucket.
				if "gs" not in args.output_dir:
								if not os.path.exists(args.output_dir ):
												os.makedirs(args.output_dir )
								snake_case_						:    str				=  os.path.join(args.output_dir ,				args.split )
								if not os.path.exists(_UpperCamelCase ):
												os.makedirs(_UpperCamelCase )
				else:
								snake_case_						:    Optional[Any]				=  os.path.join(args.output_dir ,				args.split )

				# Tokenize the whole dataset at once.
				snake_case_						:    Optional[Any]				=  tokenize_function(_UpperCamelCase )
				snake_case_						:    List[Any]				=  dataset.map(_UpperCamelCase ,				batched=_UpperCamelCase ,				num_proc=4 ,				remove_columns=['''text'''] )

				# We need to concatenate all our texts together, and then split the result
				# into chunks of a fixed size, which we will call block_size. To do this, we
				# will use the map method again, with the option batched=True. When we use batched=True,
				# the function we pass to map() will be passed multiple inputs at once, allowing us
				# to group them into more or fewer examples than we had in the input.
				# This allows us to create our new fixed-length samples. The advantage of this
				# method is that we don't lose a whole lot of content from the dataset compared to the
				# case where we simply tokenize with a pre-defined max_length.

				def group_texts(_UpperCamelCase ):
								# Concatenate all texts.
								snake_case_						:    Tuple				=  {k: sum(examples[k] ,				[] ) for k in examples.keys()}
								snake_case_						:    List[str]				=  len(concatenated_examples[list(examples.keys() )[0]] )
								# We drop the small remainder, though you could add padding instead if the model supports it
								# In this, as in all things, we advise you to follow your heart 🫀
								snake_case_						:    int				=  (total_length // args.max_length) * args.max_length
								# Split by chunks of max_len.
								snake_case_						:    Union[str, Any]				=  {
								    k: [t[i : i + args.max_length] for i in range(0 ,				_UpperCamelCase ,				args.max_length )]
								    for k, t in concatenated_examples.items()
								}
								return result

				snake_case_						:    int				=  dataset_tokenized.map(_UpperCamelCase ,				batched=_UpperCamelCase ,				batch_size=1_000 ,				num_proc=4 )

				snake_case_						:    str				=  0
				snake_case_						:    Optional[Any]				=  0
				for shard in range(0 ,				len(_UpperCamelCase ) ,				args.shard_size ):
								snake_case_						:    Any				=  grouped_dataset[shard : shard + args.shard_size]
								snake_case_						:    str				=  len(dataset_snapshot['''input_ids'''] )
								snake_case_						:    Union[str, Any]				=  os.path.join(_UpperCamelCase ,				f'''dataset-{shard_count}-{records_containing}.tfrecord''' )
								snake_case_						:    Dict				=  get_serialized_examples(_UpperCamelCase )

								with tf.io.TFRecordWriter(_UpperCamelCase ) as out_file:
												for i in range(len(_UpperCamelCase ) ):
																snake_case_						:    List[str]				=  serialized_examples[i]
																out_file.write(_UpperCamelCase )
												print('''Wrote file {} containing {} records'''.format(_UpperCamelCase ,				_UpperCamelCase ) )

								shard_count += 1
								total_records += records_containing

				with open(f'''split-{args.split}-records-count.txt''' ,				'''w''' ) as f:
								print(f'''Total {args.split} records: {total_records}''' ,				file=_UpperCamelCase )


if __name__ == "__main__":
	lowerCAmelCase_    =				parse_args()
	main(args)
