import os
from shutil import copyfile
from typing import List, Optional, Tuple

from ...tokenization_utils_fast import PreTrainedTokenizerFast
from ...utils import is_sentencepiece_available, logging


if is_sentencepiece_available():
				from .tokenization_pegasus import PegasusTokenizer
else:
				__SCREAMING_SNAKE_CASE						:   List[str]         =			None


__SCREAMING_SNAKE_CASE						:   int         =			logging.get_logger(__name__)


__SCREAMING_SNAKE_CASE						:   List[Any]         =			'▁'

__SCREAMING_SNAKE_CASE						:   Optional[Any]         =			{'vocab_file': 'spiece.model', 'tokenizer_file': 'tokenizer.json'}

__SCREAMING_SNAKE_CASE						:   List[Any]         =			{
    'vocab_file': {'google/pegasus-xsum': 'https://huggingface.co/google/pegasus-xsum/resolve/main/spiece.model'},
    'tokenizer_file': {
        'google/pegasus-xsum': 'https://huggingface.co/google/pegasus-xsum/resolve/main/tokenizer.json'
    },
}

__SCREAMING_SNAKE_CASE						:   Any         =			{
    'google/pegasus-xsum': 5_1_2,
}



class        lowercase_   (					__snake_case		):
							_lowerCamelCase						=		VOCAB_FILES_NAMES
							_lowerCamelCase						=		PRETRAINED_VOCAB_FILES_MAP
							_lowerCamelCase						=		PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
							_lowerCamelCase						=		PegasusTokenizer
							_lowerCamelCase						=		['input_ids', 'attention_mask']



							def __init__(						self				,    lowercase_=None				,    lowercase_=None				,    lowercase_="<pad>"				,    lowercase_="</s>"				,    lowercase_="<unk>"				,    lowercase_="<mask_2>"				,    lowercase_="<mask_1>"				,    lowercase_=None				,    lowercase_=103				,    **lowercase_				,    ):
													_snake_case						:					str    =   offset

													if additional_special_tokens is not None:
																			if not isinstance(lowercase_				,    lowercase_    ):
																									raise TypeError(
																									    f"""additional_special_tokens should be of type {type(lowercase_    )}, but is"""
																									    f""" {type(lowercase_    )}"""    )

																			_snake_case						:					Dict    =   (
																			    ([mask_token_sent] + additional_special_tokens)
																			    if mask_token_sent not in additional_special_tokens and mask_token_sent is not None
																			    else additional_special_tokens
																			)
																			# fill additional tokens with ..., <unk_token_102> in case not all additional tokens are already taken
																			additional_special_tokens_extended += [
																			    f"""<unk_{i}>""" for i in range(len(lowercase_    )				,    self.offset - 1    )
																			]

																			if len(set(lowercase_    )    ) != len(lowercase_    ):
																									raise ValueError(
																									    "Please make sure that the provided additional_special_tokens do not contain an incorrectly"
																									    f""" shifted list of <unk_x> tokens. Found {additional_special_tokens_extended}."""    )
																			_snake_case						:					Optional[Any]    =   additional_special_tokens_extended
													else:
																			_snake_case						:					Optional[Any]    =   [mask_token_sent] if mask_token_sent is not None else []
																			additional_special_tokens += [f"""<unk_{i}>""" for i in range(2				,    self.offset    )]

													super().__init__(
													    lowercase_				,    tokenizer_file=lowercase_				,    pad_token=lowercase_				,    eos_token=lowercase_				,    unk_token=lowercase_				,    mask_token=lowercase_				,    mask_token_sent=lowercase_				,    offset=lowercase_				,    additional_special_tokens=lowercase_				,    **lowercase_				,    )
													_snake_case						:					Dict    =   vocab_file
													_snake_case						:					Optional[Any]    =   False if not self.vocab_file else True



							def 	UpperCamelCase	(						self				,    lowercase_    ):
													_snake_case						:					Tuple    =   set(self.all_special_ids    )  # call it once instead of inside list comp
													all_special_ids.remove(self.unk_token_id    )  # <unk> is only sometimes special

													if all_special_ids != set(range(len(self.additional_special_tokens    ) + 3    )    ):
																			raise ValueError(
																			    "There should be 3 special tokens: mask_token, pad_token, and eos_token +"
																			    f""" {len(self.additional_special_tokens    )} additional_special_tokens, but got {all_special_ids}"""    )

													return [1 if x in all_special_ids else 0 for x in seq]



							def 	UpperCamelCase	(						self				,    lowercase_				,    lowercase_ = None				,    lowercase_ = False    ):
													if already_has_special_tokens:
																			return self._special_token_mask(lowercase_    )
													elif token_ids_a is None:
																			return self._special_token_mask(lowercase_    ) + [1]
													else:
																			return self._special_token_mask(token_ids_a + token_ids_a    ) + [1]



							def 	UpperCamelCase	(						self				,    lowercase_				,    lowercase_=None    ):
													if token_ids_a is None:
																			return token_ids_a + [self.eos_token_id]
													# We don't expect to process pairs, but leave the pair logic for API consistency
													return token_ids_a + token_ids_a + [self.eos_token_id]



							def 	UpperCamelCase	(						self				,    lowercase_				,    lowercase_ = None    ):
													if not self.can_save_slow_tokenizer:
																			raise ValueError(
																			    "Your fast tokenizer does not have the necessary information to save the vocabulary for a slow "
																			    "tokenizer."    )

													if not os.path.isdir(lowercase_    ):
																			logger.error(f"""Vocabulary path ({save_directory}) should be a directory"""    )
																			return
													_snake_case						:					int    =   os.path.join(
													    lowercase_				,    (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]    )

													if os.path.abspath(self.vocab_file    ) != os.path.abspath(lowercase_    ):
																			copyfile(self.vocab_file				,    lowercase_    )

													return (out_vocab_file,)
def  snake_case						(__lowercase						)	->	bool:

						'''simple docstring'''



						_snake_case						:					Dict    =   0
						for ch in input_str:
												_snake_case						:					int    =   ord(__lowercase						)
												_snake_case						:					List[Any]    =   pow(2 ,      __lowercase						)

												# If we already turned on bit for current character's unicode
												if bitmap >> ch_unicode & 1 == 1:
																		return False
												bitmap |= ch_bit_index_on
						return True


if __name__ == "__main__":
				import doctest

				doctest.testmod()