



"""simple docstring"""






from typing import Dict, List, Optional

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


snake_case   					=				logging.get_logger(__name__)


snake_case   					=				{
    '''nielsr/canine-s''': 2_0_4_8,
}

# Unicode defines 1,114,112 total “codepoints”
snake_case   					=				1_1_1_4_1_1_2

# Below: Constants defining canonical codepoints for special, pseudo-characters.
# Copied from https://github.com/google-research/language/blob/master/language/canine/special_codepoints.py
snake_case   					=				0

snake_case   					=				0Xe0_00
snake_case   					=				0Xe0_01
snake_case   					=				0Xe0_02
snake_case   					=				0Xe0_03
snake_case   					=				0Xe0_04

# Maps special codepoints to human-readable names.
snake_case   					=				{
    # Special symbols are represented using codepoints values that are valid,
    # but designated as "Private Use", meaning that they will never be assigned
    # characters by the Unicode Consortium, and are thus safe for use here.
    #
    # NOTE: Do *NOT* add any sort of [UNK_CHAR] here. They are explicitly
    # excluded and should fail with a hard error.
    CLS: '''[CLS]''',
    SEP: '''[SEP]''',
    BOS: '''[BOS]''',
    MASK: '''[MASK]''',
    PAD: '''[PAD]''',
    RESERVED: '''[RESERVED]''',
}

# Maps special codepoint human-readable names to their codepoint values.
snake_case   					=				{name: codepoint for codepoint, name in SPECIAL_CODEPOINTS.items()}



class     UpperCAmelCase    (	__UpperCamelCase  ):
   A__		:	int           =  PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES



   def __init__(       self    :	List[str]							,       __lowerCamelCase    :	List[Any]=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	Tuple=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	str=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	Optional[int]=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	Tuple=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	List[str]=chr(__UpperCAmelCase				)							,       __lowerCamelCase    :	Union[str, Any]=False							,       __lowerCamelCase    :	Optional[int]=2_0_4_8							,       **__lowerCamelCase    :	Optional[Any]							,       ):



     """simple docstring"""
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else bos_token
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else eos_token
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else sep_token
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else cls_token
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else pad_token

     # Mask token behave like a normal word, i.e. include the space before it
     _snake_case   	=      AddedToken(__UpperCAmelCase							,       lstrip=__UpperCAmelCase							,       rstrip=__UpperCAmelCase				) if isinstance(__UpperCAmelCase							,       __UpperCAmelCase				) else mask_token

     super().__init__(
         bos_token=__UpperCAmelCase							,       eos_token=__UpperCAmelCase							,       sep_token=__UpperCAmelCase							,       cls_token=__UpperCAmelCase							,       pad_token=__UpperCAmelCase							,       mask_token=__UpperCAmelCase							,       add_prefix_space=__UpperCAmelCase							,       model_max_length=__UpperCAmelCase							,       **__UpperCAmelCase							,       )

     # Creates a mapping for looking up the IDs of special symbols.
     _snake_case   	=      {}
     for codepoint, name in SPECIAL_CODEPOINTS.items():
       _snake_case   	=      codepoint

     # Creates a mapping for looking up the string forms of special symbol IDs.
     _snake_case   	=      {
         codepoint: name for name, codepoint in self._special_codepoints.items()
     }

     _snake_case   	=      UNICODE_VOCAB_SIZE
     _snake_case   	=      len(self._special_codepoints				)



   @property
   def    __UpperCAmelCase    (       self    :	Union[str, Any]				):



     """simple docstring"""
     return self._unicode_vocab_size



   def    __UpperCAmelCase    (       self    :	Union[str, Any]							,       __lowerCamelCase    :	str				):



     """simple docstring"""
     return list(__UpperCAmelCase				)



   def    __UpperCAmelCase    (       self    :	Optional[int]							,       __lowerCamelCase    :	str				):



     """simple docstring"""



     try:
       return ord(__UpperCAmelCase				)
     except TypeError:
       raise ValueError(f"""invalid token: \'{token}\'"""				)



   def    __UpperCAmelCase    (       self    :	List[str]							,       __lowerCamelCase    :	int				):



     """simple docstring"""



     try:
       if index in SPECIAL_CODEPOINTS:
         return SPECIAL_CODEPOINTS[index]
       return chr(__UpperCAmelCase				)
     except TypeError:
       raise ValueError(f"""invalid id: {index}"""				)



   def    __UpperCAmelCase    (       self    :	Tuple							,       __lowerCamelCase    :	Optional[int]				):



     """simple docstring"""
     return "".join(__UpperCAmelCase				)



   def    __UpperCAmelCase    (       self    :	Tuple							,       __lowerCamelCase    :	List[int]							,       __lowerCamelCase    :	Optional[List[int]] = None				):



     """simple docstring"""
     _snake_case   	=      [self.sep_token_id]
     _snake_case   	=      [self.cls_token_id]

     _snake_case   	=      cls + token_ids_a + sep
     if token_ids_a is not None:
       result += token_ids_a + sep
     return result



   def    __UpperCAmelCase    (       self    :	List[str]							,       __lowerCamelCase    :	List[int]							,       __lowerCamelCase    :	Optional[List[int]] = None							,       __lowerCamelCase    :	bool = False				):



     """simple docstring"""



     if already_has_special_tokens:
       return super().get_special_tokens_mask(
           token_ids_a=__UpperCAmelCase							,       token_ids_a=__UpperCAmelCase							,       already_has_special_tokens=__UpperCAmelCase				)

     _snake_case   	=      [1] + ([0] * len(__UpperCAmelCase				)) + [1]
     if token_ids_a is not None:
       result += ([0] * len(__UpperCAmelCase				)) + [1]
     return result



   def    __UpperCAmelCase    (       self    :	List[str]							,       __lowerCamelCase    :	List[int]							,       __lowerCamelCase    :	Optional[List[int]] = None				):



     """simple docstring"""
     _snake_case   	=      [self.sep_token_id]
     _snake_case   	=      [self.cls_token_id]

     _snake_case   	=      len(cls + token_ids_a + sep				) * [0]
     if token_ids_a is not None:
       result += len(token_ids_a + sep				) * [1]
     return result





   def    __UpperCAmelCase    (       self    :	Optional[Any]							,       __lowerCamelCase    :	str							,       __lowerCamelCase    :	Optional[str] = None				):



     """simple docstring"""
     return ()













def     a_   (__A				,       __A				,       __A				,       __A      )				->						int:



					"""simple docstring"""
					__a      ,			__a					:						Any      =					len(__A      ), len(grid[0]      )
					if (
					    min(__A				,       __A      ) < 0
					    or row == row_length
					    or col == col_length
					    or (row, col) in visit
					    or grid[row][col] == 1
					):
										return 0
					if row == row_length - 1 and col == col_length - 1:
										return 1

					visit.add((row, col)      )

					__a					:						Dict      =					0
					count += depth_first_search(__A				,       row + 1				,       __A				,       __A      )
					count += depth_first_search(__A				,       row - 1				,       __A				,       __A      )
					count += depth_first_search(__A				,       __A				,       col + 1				,       __A      )
					count += depth_first_search(__A				,       __A				,       col - 1				,       __A      )

					visit.remove((row, col)      )
					return count


if __name__ == "__main__":
			import doctest

			doctest.testmod()





