






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

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


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


class 						_a       (  UpperCAmelCase__    ):






  """simple docstring"""





  A_						=   ["""input_ids""", """attention_mask"""]




  def __init__(     self		,		_UpperCAmelCase="</s>"		,		_UpperCAmelCase="<unk>"		,		_UpperCAmelCase="<pad>"		,		_UpperCAmelCase=125		,		_UpperCAmelCase=None		,		**_UpperCAmelCase		,		)			-> None:
     # Add extra_ids to the special token list
     if extra_ids > 0 and additional_special_tokens is None:
        UpperCamelCase_									=     [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
        UpperCamelCase_									=     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' )

     UpperCamelCase_									=     AddedToken(_UpperCAmelCase		,		lstrip=_UpperCAmelCase		,		rstrip=_UpperCAmelCase ) if isinstance(_UpperCAmelCase		,		_UpperCAmelCase ) else pad_token
     UpperCamelCase_									=     AddedToken(_UpperCAmelCase		,		lstrip=_UpperCAmelCase		,		rstrip=_UpperCAmelCase ) if isinstance(_UpperCAmelCase		,		_UpperCAmelCase ) else eos_token
     UpperCamelCase_									=     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		,		)

     UpperCamelCase_									=     extra_ids

     UpperCamelCase_									=     2**8  # utf is 8 bits

     # define special tokens dict
     UpperCamelCase_									=     {
         self.pad_token: 0,
         self.eos_token: 1,
         self.unk_token: 2,
     }
     UpperCamelCase_									=     len(self.special_tokens_encoder )
     UpperCamelCase_									=     len(_UpperCAmelCase )
     for i, token in enumerate(_UpperCAmelCase ):
        UpperCamelCase_									=     self.vocab_size + i - n
     UpperCamelCase_									=     {v: k for k, v in self.special_tokens_encoder.items()}




  @property
  def    _UpperCAmelCase     (     self )			-> Optional[int]:
     return self._utf_vocab_size + self._num_special_tokens + self._extra_ids




  def    _UpperCAmelCase     (     self		,		_UpperCAmelCase		,		_UpperCAmelCase = None		,		_UpperCAmelCase = False )			-> List[int]:
     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    _UpperCAmelCase     (     self		,		_UpperCAmelCase )			-> List[int]:
     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    _UpperCAmelCase     (     self		,		_UpperCAmelCase		,		_UpperCAmelCase = None )			-> List[int]:
     UpperCamelCase_									=     [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    _UpperCAmelCase     (     self		,		_UpperCAmelCase		,		_UpperCAmelCase = None )			-> List[int]:
     UpperCamelCase_									=     self._add_eos_if_not_present(_UpperCAmelCase )
     if token_ids_a is None:
        return token_ids_a
     else:
        UpperCamelCase_									=     self._add_eos_if_not_present(_UpperCAmelCase )
        return token_ids_a + token_ids_a




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




  def    _UpperCAmelCase     (     self		,		_UpperCAmelCase )			-> List[str]:
     if token in self.special_tokens_encoder:
        UpperCamelCase_									=     self.special_tokens_encoder[token]
     elif token in self.added_tokens_encoder:
        UpperCamelCase_									=     self.added_tokens_encoder[token]
     elif len(_UpperCAmelCase ) != 1:
        UpperCamelCase_									=     self.unk_token_id
     else:
        UpperCamelCase_									=     ord(_UpperCAmelCase ) + self._num_special_tokens
     return token_id




  def    _UpperCAmelCase     (     self		,		_UpperCAmelCase )			-> str:
     if index in self.special_tokens_decoder:
        UpperCamelCase_									=     self.special_tokens_decoder[index]
     else:
        UpperCamelCase_									=     chr(index - self._num_special_tokens )
     return token




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




  def    _UpperCAmelCase     (     self		,		_UpperCAmelCase		,		_UpperCAmelCase = None )			-> Tuple[str]:
     return ()













def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)
   if n == 0:
      return 0
   UpperCamelCase_									=     float('-inf')
   for i in range(1    ,      n + 1):
      UpperCamelCase_									=     max(
          __lowercase    ,      prices[i - 1] + naive_cut_rod_recursive(n - i    ,      __lowercase))

   return max_revue






def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     [float('-inf') for _ in range(n + 1)]
   return _top_down_cut_rod_recursive(__lowercase    ,      __lowercase    ,      __lowercase)






def     _snake_case    (__lowercase    ,      __lowercase    ,      __lowercase):
   if max_rev[n] >= 0:
      return max_rev[n]
   elif n == 0:
      return 0
   else:
      UpperCamelCase_									=     float('-inf')
      for i in range(1    ,      n + 1):
         UpperCamelCase_									=     max(
             __lowercase    ,      prices[i - 1] + _top_down_cut_rod_recursive(n - i    ,      __lowercase    ,      __lowercase)    ,      )

      UpperCamelCase_									=     max_revenue

   return max_rev[n]






def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)

   # length(max_rev) = n + 1, to accommodate for the revenue obtainable from a rod of
   # length 0.
   UpperCamelCase_									=     [float('-inf') for _ in range(n + 1)]
   UpperCamelCase_									=     0

   for i in range(1    ,      n + 1):
      UpperCamelCase_									=     max_rev[i]
      for j in range(1    ,      i + 1):
         UpperCamelCase_									=     max(__lowercase    ,      prices[j - 1] + max_rev[i - j])

      UpperCamelCase_									=     max_revenue_i

   return max_rev[n]






def     _snake_case    (__lowercase    ,      __lowercase):
   if n < 0:
      UpperCamelCase_									=     f"""n must be greater than or equal to 0. Got n = {n}"""
      raise ValueError(__lowercase)

   if n > len(__lowercase):
      UpperCamelCase_									=     (
          'Each integral piece of rod must have a corresponding price. '
          f"""Got n = {n} but length of prices = {len(__lowercase)}"""
      )
      raise ValueError(__lowercase)






def     _snake_case    ():
   UpperCamelCase_									=     [6, 10, 12, 15, 20, 23]
   UpperCamelCase_									=     len(__lowercase)

   # the best revenue comes from cutting the rod into 6 pieces, each
   # of length 1 resulting in a revenue of 6 * 6 = 36.
   UpperCamelCase_									=     36

   UpperCamelCase_									=     top_down_cut_rod(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     bottom_up_cut_rod(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     naive_cut_rod_recursive(__lowercase    ,      __lowercase)

   assert expected_max_revenue == max_rev_top_down
   assert max_rev_top_down == max_rev_bottom_up
   assert max_rev_bottom_up == max_rev_naive


if __name__ == "__main__":
 main()





