





'''simple docstring'''






def 							_lowerCamelCase(  UpperCamelCase__    : str		)		->  bool:
    A       :       Dict							=						0
    for ch in input_str:
        A       :       List[str]							=						ord(UpperCamelCase__		)
        A       :       Optional[Any]							=						pow(2    ,       UpperCamelCase__		)

        # 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()







'''simple docstring'''






import warnings
from typing import Dict, List, Optional, Tuple

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


snake_case_     =	logging.get_logger(__name__)


class   _lowercase						(							a				):
   _UpperCamelCase       		=   ["""input_ids""", """attention_mask"""]


   def __init__( self    ,   _UpperCAmelCase="</s>"    ,   _UpperCAmelCase="<unk>"    ,   _UpperCAmelCase="<pad>"    ,   _UpperCAmelCase=125    ,   _UpperCAmelCase=None    ,   **_UpperCAmelCase    ,   ):
       # Add extra_ids to the special token list
       if extra_ids > 0 and additional_special_tokens is None:
           A       :       str							=						[f'''<extra_id_{i}>''' for i in range(_UpperCAmelCase					)]
       elif extra_ids > 0 and additional_special_tokens is not None:
           # Check that we have the right number of extra_id special tokens
           A       :       List[str]							=						len(set(filter(lambda _UpperCAmelCase					: bool('''extra_id''' in str(_UpperCAmelCase					)					)    ,   _UpperCAmelCase					)					)					)
           if extra_tokens != extra_ids:
               raise ValueError(
                   f'''Both extra_ids ({extra_ids}) and additional_special_tokens ({additional_special_tokens}) are'''
                   ''' provided to ByT5Tokenizer. In this case the additional_special_tokens must include the'''
                   ''' extra_ids tokens'''					)

       A       :       str							=						AddedToken(_UpperCAmelCase    ,   lstrip=_UpperCAmelCase    ,   rstrip=_UpperCAmelCase					) if isinstance(_UpperCAmelCase    ,   _UpperCAmelCase					) else pad_token
       A       :       Any							=						AddedToken(_UpperCAmelCase    ,   lstrip=_UpperCAmelCase    ,   rstrip=_UpperCAmelCase					) if isinstance(_UpperCAmelCase    ,   _UpperCAmelCase					) else eos_token
       A       :       Optional[Any]							=						AddedToken(_UpperCAmelCase    ,   lstrip=_UpperCAmelCase    ,   rstrip=_UpperCAmelCase					) if isinstance(_UpperCAmelCase    ,   _UpperCAmelCase					) else unk_token

       super().__init__(
           eos_token=_UpperCAmelCase    ,   unk_token=_UpperCAmelCase    ,   pad_token=_UpperCAmelCase    ,   extra_ids=_UpperCAmelCase    ,   additional_special_tokens=_UpperCAmelCase    ,   **_UpperCAmelCase    ,   )

       A       :       int							=						extra_ids

       A       :       Any							=						2**8  # utf is 8 bits

       # define special tokens dict
       A       :       Dict[int, str]							=						{
           self.pad_token: 0,
           self.eos_token: 1,
           self.unk_token: 2,
       }
       A       :       Tuple							=						len(self.special_tokens_encoder					)
       A       :       Union[str, Any]							=						len(_UpperCAmelCase					)
       for i, token in enumerate(_UpperCAmelCase					):
           A       :       Optional[Any]							=						self.vocab_size + i - n
       A       :       Dict[str, int]							=						{v: k for k, v in self.special_tokens_encoder.items()}


   @property
   def 					snake_case				( self					):
       return self._utf_vocab_size + self._num_special_tokens + self._extra_ids


   def 					snake_case				( self    ,   _UpperCAmelCase    ,   _UpperCAmelCase = None    ,   _UpperCAmelCase = False					):
       if already_has_special_tokens:
           return super().get_special_tokens_mask(
               token_ids_a=_UpperCAmelCase    ,   token_ids_a=_UpperCAmelCase    ,   already_has_special_tokens=_UpperCAmelCase					)

       # normal case: some special tokens
       if token_ids_a is None:
           return ([0] * len(_UpperCAmelCase					)) + [1]
       return ([0] * len(_UpperCAmelCase					)) + [1] + ([0] * len(_UpperCAmelCase					)) + [1]


   def 					snake_case				( self    ,   _UpperCAmelCase					):
       if len(_UpperCAmelCase					) > 0 and token_ids[-1] == self.eos_token_id:
           warnings.warn(
               f'''This sequence already has {self.eos_token}. In future versions this behavior may lead to duplicated'''
               ''' eos tokens being added.'''					)
           return token_ids
       else:
           return token_ids + [self.eos_token_id]


   def 					snake_case				( self    ,   _UpperCAmelCase    ,   _UpperCAmelCase = None					):
       A       :       Optional[Any]							=						[self.eos_token_id]

       if token_ids_a is None:
           return len(token_ids_a + eos					) * [0]
       return len(token_ids_a + eos + token_ids_a + eos					) * [0]


   def 					snake_case				( self    ,   _UpperCAmelCase    ,   _UpperCAmelCase = None					):
       A       :       Union[str, Any]							=						self._add_eos_if_not_present(_UpperCAmelCase					)
       if token_ids_a is None:
           return token_ids_a
       else:
           A       :       Tuple							=						self._add_eos_if_not_present(_UpperCAmelCase					)
           return token_ids_a + token_ids_a


   def 					snake_case				( self    ,   _UpperCAmelCase					):
       A       :       str							=						[chr(_UpperCAmelCase					) for i in text.encode('''utf-8'''					)]
       return tokens


   def 					snake_case				( self    ,   _UpperCAmelCase					):
       if token in self.special_tokens_encoder:
           A       :       Union[str, Any]							=						self.special_tokens_encoder[token]
       elif token in self.added_tokens_encoder:
           A       :       int							=						self.added_tokens_encoder[token]
       elif len(_UpperCAmelCase					) != 1:
           A       :       Union[str, Any]							=						self.unk_token_id
       else:
           A       :       Union[str, Any]							=						ord(_UpperCAmelCase					) + self._num_special_tokens
       return token_id


   def 					snake_case				( self    ,   _UpperCAmelCase					):
       if index in self.special_tokens_decoder:
           A       :       Optional[Any]							=						self.special_tokens_decoder[index]
       else:
           A       :       Dict							=						chr(index - self._num_special_tokens					)
       return token


   def 					snake_case				( self    ,   _UpperCAmelCase					):
       A       :       List[str]							=						B''''''
       for token in tokens:
           if token in self.special_tokens_decoder:
               A       :       List[str]							=						self.special_tokens_decoder[token].encode('''utf-8'''					)
           elif token in self.added_tokens_decoder:
               A       :       Optional[int]							=						self.special_tokens_decoder[token].encode('''utf-8'''					)
           elif token in self.special_tokens_encoder:
               A       :       Union[str, Any]							=						token.encode('''utf-8'''					)
           elif token in self.added_tokens_encoder:
               A       :       str							=						token.encode('''utf-8'''					)
           else:
               A       :       Tuple							=						bytes([ord(_UpperCAmelCase					)]					)
           bstring += tok_string
       A       :       List[Any]							=						bstring.decode('''utf-8'''    ,   errors='''ignore'''					)
       return string


   def 					snake_case				( self    ,   _UpperCAmelCase    ,   _UpperCAmelCase = None					):
       return ()
