





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:
     _snake_case  :    Union[str, Any]						    =  None


_snake_case  :    Union[str, Any]						    =  logging.get_logger(__name__)


_snake_case  :    Optional[Any]						    =  '▁'

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

_snake_case  :    Tuple						    =  {
    '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'
    },
}

_snake_case  :    Union[str, Any]						    =  {
    'google/pegasus-xsum': 512,
}



class 				_UpperCAmelCase    (    _UpperCamelCase    ):

  """simple docstring"""


  a_        = VOCAB_FILES_NAMES
  a_        = PRETRAINED_VOCAB_FILES_MAP
  a_        = PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
  a_        = PegasusTokenizer
  a_        = ["""input_ids""", """attention_mask"""]






  def __init__(				self :		List[Any]					,  lowerCAmelCase_ :		int=None					,  lowerCAmelCase_ :		List[Any]=None					,  lowerCAmelCase_ :		Union[str, Any]="<pad>"					,  lowerCAmelCase_ :		int="</s>"					,  lowerCAmelCase_ :		Optional[int]="<unk>"					,  lowerCAmelCase_ :		Union[str, Any]="<mask_2>"					,  lowerCAmelCase_ :		Tuple="<mask_1>"					,  lowerCAmelCase_ :		Dict=None					,  lowerCAmelCase_ :		Optional[int]=1_0_3					,  **lowerCAmelCase_ :		str					,  )							->						str:
     __lowerCAmelCase								=	offset

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

        __lowerCAmelCase								=	(
            ([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(lowerCAmelCase_     )					,  self.offset - 1     )
        ]

        if len(set(lowerCAmelCase_     )     ) != len(lowerCAmelCase_     ):
           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}."""     )
        __lowerCAmelCase								=	additional_special_tokens_extended
     else:
        __lowerCAmelCase								=	[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__(
         lowerCAmelCase_					,  tokenizer_file=lowerCAmelCase_					,  pad_token=lowerCAmelCase_					,  eos_token=lowerCAmelCase_					,  unk_token=lowerCAmelCase_					,  mask_token=lowerCAmelCase_					,  mask_token_sent=lowerCAmelCase_					,  offset=lowerCAmelCase_					,  additional_special_tokens=lowerCAmelCase_					,  **lowerCAmelCase_					,  )
     __lowerCAmelCase								=	vocab_file
     __lowerCAmelCase								=	False if not self.vocab_file else True






  def 				lowercase		(				self :		Union[str, Any]					,  lowerCAmelCase_ :		Optional[Any]     )							->						Union[str, Any]:
     __lowerCAmelCase								=	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 				lowercase		(				self :		Any					,  lowerCAmelCase_ :		List					,  lowerCAmelCase_ :		Optional[List] = None					,  lowerCAmelCase_ :		bool = False     )							->						List[int]:
     if already_has_special_tokens:
        return self._special_token_mask(lowerCAmelCase_     )
     elif token_ids_a is None:
        return self._special_token_mask(lowerCAmelCase_     ) + [1]
     else:
        return self._special_token_mask(token_ids_a + token_ids_a     ) + [1]






  def 				lowercase		(				self :		str					,  lowerCAmelCase_ :		Optional[Any]					,  lowerCAmelCase_ :		Optional[Any]=None     )							->						List[int]:
     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 				lowercase		(				self :		Dict					,  lowerCAmelCase_ :		str					,  lowerCAmelCase_ :		Optional[str] = None     )							->						Tuple[str]:
     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(lowerCAmelCase_     ):
        logger.error(f"""Vocabulary path ({save_directory}) should be a directory"""     )
        return
     __lowerCAmelCase								=	os.path.join(
         lowerCAmelCase_					,  (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']     )

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

     return (out_vocab_file,)








def   a_    ( lowerCAmelCase_      :			int	):

   if p < 2:
      raise ValueError('p should not be less than 2!'	)
   elif p == 2:
      return True

   __lowerCAmelCase								=	4
   __lowerCAmelCase								=	(1 << p) - 1
   for _ in range(p - 2	):
      __lowerCAmelCase								=	((s * s) - 2) % m
   return s == 0


if __name__ == "__main__":
     print(lucas_lehmer_test(7))
     print(lucas_lehmer_test(11))

