




"""simple docstring"""



from typing import Any




class      UpperCAmelCase_  :




    def __init__(   self						:	Optional[Any]     ,			snake_case_						:	Any				)				->							List[str]:




     '''simple docstring'''

     A__	=    data
     A__	=    None




    def __repr__(   self						:	Optional[int]				)				->							str:




     '''simple docstring'''

     return F"""Node({self.data})"""






class      UpperCAmelCase_  :




    def __init__(   self						:	Dict				)				->							Any:




     '''simple docstring'''

     A__	=    None




    def __iter__(   self						:	List[Any]				)				->							Any:




     '''simple docstring'''

     A__	=    self.head
     while node:
      yield node.data
      A__	=    node.next




    def __len__(   self						:	Any				)				->							int:




     '''simple docstring'''

     return sum(1 for _ in self				)




    def __repr__(   self						:	List[str]				)				->							str:




     '''simple docstring'''

     return "->".join([str(snake_case_				) for item in self]				)




    def __getitem__(   self						:	str     ,			snake_case_						:	int				)				->							Any:




     '''simple docstring'''

     if not 0 <= index < len(self				):
      raise ValueError("list index out of range."				)
     for i, node in enumerate(self				):
      if i == index:
       return node
     return None




    def __setitem__(   self						:	Tuple     ,			snake_case_						:	int     ,			snake_case_						:	Any				)				->							None:




     '''simple docstring'''

     if not 0 <= index < len(self				):
      raise ValueError("list index out of range."				)
     A__	=    self.head
     for _ in range(snake_case_				):
      A__	=    current.next
     A__	=    data




    def 							__magic_name__							(   self						:	List[Any]     ,			snake_case_						:	Any				)				->							None:




     '''simple docstring'''

     self.insert_nth(len(self				)     ,			snake_case_				)




    def 							__magic_name__							(   self						:	Tuple     ,			snake_case_						:	Any				)				->							None:




     '''simple docstring'''

     self.insert_nth(0     ,			snake_case_				)




    def 							__magic_name__							(   self						:	Dict     ,			snake_case_						:	int     ,			snake_case_						:	Any				)				->							None:




     '''simple docstring'''

     if not 0 <= index <= len(self				):
      raise IndexError("list index out of range"				)
     A__	=    Node(snake_case_				)
     if self.head is None:
      A__	=    new_node
     elif index == 0:
      A__	=    self.head  # link new_node to head
      A__	=    new_node
     else:
      A__	=    self.head
      for _ in range(index - 1				):
       A__	=    temp.next
      A__	=    temp.next
      A__	=    new_node




    def 							__magic_name__							(   self						:	Dict				)				->							None:  # print every node data




     '''simple docstring'''

     print(self				)




    def 							__magic_name__							(   self						:	Dict				)				->							Any:




     '''simple docstring'''

     return self.delete_nth(0				)




    def 							__magic_name__							(   self						:	Optional[Any]				)				->							Any:  # delete from tail




     '''simple docstring'''

     return self.delete_nth(len(self				) - 1				)




    def 							__magic_name__							(   self						:	Any     ,			snake_case_						:	int = 0				)				->							Any:




     '''simple docstring'''

     if not 0 <= index <= len(self				) - 1:  # test if index is valid
      raise IndexError("List index out of range."				)
     A__	=    self.head  # default first node
     if index == 0:
      A__	=    self.head.next
     else:
      A__	=    self.head
      for _ in range(index - 1				):
       A__	=    temp.next
      A__	=    temp.next
      A__	=    temp.next.next
     return delete_node.data




    def 							__magic_name__							(   self						:	Dict				)				->							bool:




     '''simple docstring'''

     return self.head is None




    def 							__magic_name__							(   self						:	List[Any]				)				->							None:




     '''simple docstring'''

     A__	=    None
     A__	=    self.head

     while current:
      # Store the current node's next node.
      A__	=    current.next
      # Make the current node's next point backwards
      A__	=    prev
      # Make the previous node be the current node
      A__	=    current
      # Make the current node the next node (to progress iteration)
      A__	=    next_node
     # Return prev in order to put the head at the end
     A__	=    prev







def   _SCREAMING_SNAKE_CASE       (							)						->		None:
 A__	=    LinkedList()
 assert linked_list.is_empty() is True
 assert str(lowercase_						) == ""

 try:
  linked_list.delete_head()
  raise AssertionError  # This should not happen.
 except IndexError:
  assert True  # This should happen.

 try:
  linked_list.delete_tail()
  raise AssertionError  # This should not happen.
 except IndexError:
  assert True  # This should happen.

 for i in range(10						):
  assert len(lowercase_						) == i
  linked_list.insert_nth(lowercase_      ,			i + 1						)
 assert str(lowercase_						) == "->".join(str(lowercase_						) for i in range(1      ,			11						)						)

 linked_list.insert_head(0						)
 linked_list.insert_tail(11						)
 assert str(lowercase_						) == "->".join(str(lowercase_						) for i in range(0      ,			12						)						)

 assert linked_list.delete_head() == 0
 assert linked_list.delete_nth(9						) == 10
 assert linked_list.delete_tail() == 11
 assert len(lowercase_						) == 9
 assert str(lowercase_						) == "->".join(str(lowercase_						) for i in range(1      ,			10						)						)

 assert all(linked_list[i] == i + 1 for i in range(0      ,			9						)						) is True

 for i in range(0      ,			9						):
  A__	=    -i
 assert all(linked_list[i] == -i for i in range(0      ,			9						)						) is True

 linked_list.reverse()
 assert str(lowercase_						) == "->".join(str(lowercase_						) for i in range(-8      ,			1						)						)







def   _SCREAMING_SNAKE_CASE       (							)						->		None:
 A__	=    [
     -9,
     1_00,
     Node(77_34_51_12						),
     "dlrow olleH",
     7,
     55_55,
     0,
     -1_9_2.5_5_5_5_5,
     "Hello, world!",
     7_7.9,
     Node(10						),
     None,
     None,
     1_2.2_0,
 ]
 A__	=    LinkedList()

 for i in test_input:
  linked_list.insert_tail(lowercase_						)

 # Check if it's empty or not
 assert linked_list.is_empty() is False
 assert (
     str(lowercase_						) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
     "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
 )

 # Delete the head
 A__	=    linked_list.delete_head()
 assert result == -9
 assert (
     str(lowercase_						) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
     "Hello, world!->77.9->Node(10)->None->None->12.2"
 )

 # Delete the tail
 A__	=    linked_list.delete_tail()
 assert result == 1_2.2
 assert (
     str(lowercase_						) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
     "Hello, world!->77.9->Node(10)->None->None"
 )

 # Delete a node in specific location in linked list
 A__	=    linked_list.delete_nth(10						)
 assert result is None
 assert (
     str(lowercase_						) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
     "Hello, world!->77.9->Node(10)->None"
 )

 # Add a Node instance to its head
 linked_list.insert_head(Node("Hello again, world!"						)						)
 assert (
     str(lowercase_						)
     == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
     "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
 )

 # Add None to its tail
 linked_list.insert_tail(lowercase_						)
 assert (
     str(lowercase_						)
     == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
     "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
 )

 # Reverse the linked list
 linked_list.reverse()
 assert (
     str(lowercase_						)
     == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
     "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
 )







def   _SCREAMING_SNAKE_CASE       (							)						->		Optional[int]:
 from doctest import testmod

 testmod()

 A__	=    LinkedList()
 linked_list.insert_head(input("Inserting 1st at head "						).strip()						)
 linked_list.insert_head(input("Inserting 2nd at head "						).strip()						)
 print("\nPrint list:"						)
 linked_list.print_list()
 linked_list.insert_tail(input("\nInserting 1st at tail "						).strip()						)
 linked_list.insert_tail(input("Inserting 2nd at tail "						).strip()						)
 print("\nPrint list:"						)
 linked_list.print_list()
 print("\nDelete head"						)
 linked_list.delete_head()
 print("Delete tail"						)
 linked_list.delete_tail()
 print("\nPrint list:"						)
 linked_list.print_list()
 print("\nReverse linked list"						)
 linked_list.reverse()
 print("\nPrint list:"						)
 linked_list.print_list()
 print("\nString representation of linked list:"						)
 print(lowercase_						)
 print("\nReading/changing Node data using indexing:"						)
 print(f"""Element at Position 1: {linked_list[1]}"""						)
 A__	=    input("Enter New Value: "						).strip()
 print("New list:"						)
 print(lowercase_						)
 print(f"""length of linked_list is : {len(lowercase_						)}"""						)


if __name__ == "__main__":
      main()











"""simple docstring"""



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

from tokenizers import processors

from ...tokenization_utils import AddedToken, BatchEncoding
from ...tokenization_utils_fast import PreTrainedTokenizerFast
from ...utils import is_sentencepiece_available, logging


if is_sentencepiece_available():
      from .tokenization_nllb import NllbTokenizer
else:
      SCREAMING_SNAKE_CASE    =	None


SCREAMING_SNAKE_CASE    =	logging.get_logger(__name__)


SCREAMING_SNAKE_CASE    =	{"vocab_file": "sentencepiece.bpe.model", "tokenizer_file": "tokenizer.json"}

SCREAMING_SNAKE_CASE    =	{
    "vocab_file": {
        "facebook/nllb-200-distilled-600M": (
            "https://huggingface.co/facebook/nllb-200-distilled-600M/resolve/main/sentencepiece.bpe.model"
        ),
    },
    "tokenizer_file": {
        "facebook/nllb-200-distilled-600M": (
            "https://huggingface.co/facebook/nllb-200-distilled-600M/resolve/main/tokenizer.json"
        ),
    },
}

SCREAMING_SNAKE_CASE    =	{
    "facebook/nllb-large-en-ro": 1024,
    "facebook/nllb-200-distilled-600M": 1024,
}

# fmt: off
SCREAMING_SNAKE_CASE    =	["ace_Arab", "ace_Latn", "acm_Arab", "acq_Arab", "aeb_Arab", "afr_Latn", "ajp_Arab", "aka_Latn", "amh_Ethi", "apc_Arab", "arb_Arab", "ars_Arab", "ary_Arab", "arz_Arab", "asm_Beng", "ast_Latn", "awa_Deva", "ayr_Latn", "azb_Arab", "azj_Latn", "bak_Cyrl", "bam_Latn", "ban_Latn", "bel_Cyrl", "bem_Latn", "ben_Beng", "bho_Deva", "bjn_Arab", "bjn_Latn", "bod_Tibt", "bos_Latn", "bug_Latn", "bul_Cyrl", "cat_Latn", "ceb_Latn", "ces_Latn", "cjk_Latn", "ckb_Arab", "crh_Latn", "cym_Latn", "dan_Latn", "deu_Latn", "dik_Latn", "dyu_Latn", "dzo_Tibt", "ell_Grek", "eng_Latn", "epo_Latn", "est_Latn", "eus_Latn", "ewe_Latn", "fao_Latn", "pes_Arab", "fij_Latn", "fin_Latn", "fon_Latn", "fra_Latn", "fur_Latn", "fuv_Latn", "gla_Latn", "gle_Latn", "glg_Latn", "grn_Latn", "guj_Gujr", "hat_Latn", "hau_Latn", "heb_Hebr", "hin_Deva", "hne_Deva", "hrv_Latn", "hun_Latn", "hye_Armn", "ibo_Latn", "ilo_Latn", "ind_Latn", "isl_Latn", "ita_Latn", "jav_Latn", "jpn_Jpan", "kab_Latn", "kac_Latn", "kam_Latn", "kan_Knda", "kas_Arab", "kas_Deva", "kat_Geor", "knc_Arab", "knc_Latn", "kaz_Cyrl", "kbp_Latn", "kea_Latn", "khm_Khmr", "kik_Latn", "kin_Latn", "kir_Cyrl", "kmb_Latn", "kon_Latn", "kor_Hang", "kmr_Latn", "lao_Laoo", "lvs_Latn", "lij_Latn", "lim_Latn", "lin_Latn", "lit_Latn", "lmo_Latn", "ltg_Latn", "ltz_Latn", "lua_Latn", "lug_Latn", "luo_Latn", "lus_Latn", "mag_Deva", "mai_Deva", "mal_Mlym", "mar_Deva", "min_Latn", "mkd_Cyrl", "plt_Latn", "mlt_Latn", "mni_Beng", "khk_Cyrl", "mos_Latn", "mri_Latn", "zsm_Latn", "mya_Mymr", "nld_Latn", "nno_Latn", "nob_Latn", "npi_Deva", "nso_Latn", "nus_Latn", "nya_Latn", "oci_Latn", "gaz_Latn", "ory_Orya", "pag_Latn", "pan_Guru", "pap_Latn", "pol_Latn", "por_Latn", "prs_Arab", "pbt_Arab", "quy_Latn", "ron_Latn", "run_Latn", "rus_Cyrl", "sag_Latn", "san_Deva", "sat_Beng", "scn_Latn", "shn_Mymr", "sin_Sinh", "slk_Latn", "slv_Latn", "smo_Latn", "sna_Latn", "snd_Arab", "som_Latn", "sot_Latn", "spa_Latn", "als_Latn", "srd_Latn", "srp_Cyrl", "ssw_Latn", "sun_Latn", "swe_Latn", "swh_Latn", "szl_Latn", "tam_Taml", "tat_Cyrl", "tel_Telu", "tgk_Cyrl", "tgl_Latn", "tha_Thai", "tir_Ethi", "taq_Latn", "taq_Tfng", "tpi_Latn", "tsn_Latn", "tso_Latn", "tuk_Latn", "tum_Latn", "tur_Latn", "twi_Latn", "tzm_Tfng", "uig_Arab", "ukr_Cyrl", "umb_Latn", "urd_Arab", "uzn_Latn", "vec_Latn", "vie_Latn", "war_Latn", "wol_Latn", "xho_Latn", "ydd_Hebr", "yor_Latn", "yue_Hant", "zho_Hans", "zho_Hant", "zul_Latn"]




class      UpperCAmelCase_  (						A_							):
    lowercase__						 =				VOCAB_FILES_NAMES
    lowercase__						 =				PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
    lowercase__						 =				PRETRAINED_VOCAB_FILES_MAP
    lowercase__						 =				['''input_ids''', '''attention_mask''']
    lowercase__						 =				NllbTokenizer

    lowercase__						 =				[]
    lowercase__						 =				[]




    def __init__(   self						:	int     ,			snake_case_						:	int=None     ,			snake_case_						:	Any=None     ,			snake_case_						:	int="<s>"     ,			snake_case_						:	List[Any]="</s>"     ,			snake_case_						:	Optional[int]="</s>"     ,			snake_case_						:	int="<s>"     ,			snake_case_						:	str="<unk>"     ,			snake_case_						:	str="<pad>"     ,			snake_case_						:	Optional[int]="<mask>"     ,			snake_case_						:	str=None     ,			snake_case_						:	List[Any]=None     ,			snake_case_						:	Tuple=None     ,			snake_case_						:	Optional[int]=False     ,			**snake_case_						:	List[str]     ,			)				->							Tuple:




     '''simple docstring'''

     A__	=    AddedToken(snake_case_     ,			lstrip=snake_case_     ,			rstrip=snake_case_				) if isinstance(snake_case_     ,			snake_case_				) else mask_token
     A__	=    legacy_behaviour
     super().__init__(
         vocab_file=snake_case_     ,			tokenizer_file=snake_case_     ,			bos_token=snake_case_     ,			eos_token=snake_case_     ,			sep_token=snake_case_     ,			cls_token=snake_case_     ,			unk_token=snake_case_     ,			pad_token=snake_case_     ,			mask_token=snake_case_     ,			src_lang=snake_case_     ,			tgt_lang=snake_case_     ,			additional_special_tokens=snake_case_     ,			legacy_behaviour=snake_case_     ,			**snake_case_     ,			)

     A__	=    vocab_file
     A__	=    False if not self.vocab_file else True

     A__	=    FAIRSEQ_LANGUAGE_CODES.copy()

     if additional_special_tokens is not None:
      # Only add those special tokens if they are not already there.
      _additional_special_tokens.extend(
          [t for t in additional_special_tokens if t not in _additional_special_tokens]				)

     self.add_special_tokens({"additional_special_tokens": _additional_special_tokens}				)
     A__	=    {
         lang_code: self.convert_tokens_to_ids(snake_case_				) for lang_code in FAIRSEQ_LANGUAGE_CODES
     }

     A__	=    src_lang if src_lang is not None else "eng_Latn"
     A__	=    self.convert_tokens_to_ids(self._src_lang				)
     A__	=    tgt_lang
     self.set_src_lang_special_tokens(self._src_lang				)




    @property
    def 							__magic_name__							(   self						:	Union[str, Any]				)				->							str:




     '''simple docstring'''

     return self._src_lang




    @src_lang.setter
    def 							__magic_name__							(   self						:	Optional[int]     ,			snake_case_						:	str				)				->							None:




     '''simple docstring'''

     A__	=    new_src_lang
     self.set_src_lang_special_tokens(self._src_lang				)




    def 							__magic_name__							(   self						:	Optional[int]     ,			snake_case_						:	List[int]     ,			snake_case_						:	Optional[List[int]] = None				)				->							List[int]:




     '''simple docstring'''

     if token_ids_a is None:
      return self.prefix_tokens + token_ids_a + self.suffix_tokens
     # We don't expect to process pairs, but leave the pair logic for API consistency
     return self.prefix_tokens + token_ids_a + token_ids_a + self.suffix_tokens




    def 							__magic_name__							(   self						:	Any     ,			snake_case_						:	List[int]     ,			snake_case_						:	Optional[List[int]] = None				)				->							List[int]:




     '''simple docstring'''

     A__	=    [self.sep_token_id]
     A__	=    [self.cls_token_id]

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




    def 							__magic_name__							(   self						:	int     ,			snake_case_						:	Tuple     ,			snake_case_						:	str     ,			snake_case_						:	Optional[str]     ,			snake_case_						:	Optional[str]     ,			**snake_case_						:	Tuple				)				->							List[Any]:




     '''simple docstring'''

     if src_lang is None or tgt_lang is None:
      raise ValueError("Translation requires a `src_lang` and a `tgt_lang` for this model"				)
     A__	=    src_lang
     A__	=    self(snake_case_     ,			add_special_tokens=snake_case_     ,			return_tensors=snake_case_     ,			**snake_case_				)
     A__	=    self.convert_tokens_to_ids(snake_case_				)
     A__	=    tgt_lang_id
     return inputs




    def 							__magic_name__							(   self						:	int     ,			snake_case_						:	List[str]     ,			snake_case_						:	str = "eng_Latn"     ,			snake_case_						:	Optional[List[str]] = None     ,			snake_case_						:	str = "fra_Latn"     ,			**snake_case_						:	Dict     ,			)				->							BatchEncoding:




     '''simple docstring'''

     A__	=    src_lang
     A__	=    tgt_lang
     return super().prepare_seqaseq_batch(snake_case_     ,			snake_case_     ,			**snake_case_				)




    def 							__magic_name__							(   self						:	Optional[Any]				)				->							Optional[Any]:




     '''simple docstring'''

     return self.set_src_lang_special_tokens(self.src_lang				)




    def 							__magic_name__							(   self						:	Tuple				)				->							Dict:




     '''simple docstring'''

     return self.set_tgt_lang_special_tokens(self.tgt_lang				)




    def 							__magic_name__							(   self						:	List[Any]     ,			snake_case_						:	Dict				)				->							None:




     '''simple docstring'''

     A__	=    self.convert_tokens_to_ids(snake_case_				)

     if self.legacy_behaviour:
      A__	=    []
      A__	=    [self.eos_token_id, self.cur_lang_code]
     else:
      A__	=    [self.cur_lang_code]
      A__	=    [self.eos_token_id]

     A__	=    self.convert_ids_to_tokens(self.prefix_tokens				)
     A__	=    self.convert_ids_to_tokens(self.suffix_tokens				)

     A__	=    processors.TemplateProcessing(
         single=prefix_tokens_str + ["$A"] + suffix_tokens_str     ,			pair=prefix_tokens_str + ["$A", "$B"] + suffix_tokens_str     ,			special_tokens=list(zip(prefix_tokens_str + suffix_tokens_str     ,			self.prefix_tokens + self.suffix_tokens				)				)     ,			)




    def 							__magic_name__							(   self						:	List[Any]     ,			snake_case_						:	str				)				->							None:




     '''simple docstring'''

     A__	=    self.convert_tokens_to_ids(snake_case_				)
     if self.legacy_behaviour:
      A__	=    []
      A__	=    [self.eos_token_id, self.cur_lang_code]
     else:
      A__	=    [self.cur_lang_code]
      A__	=    [self.eos_token_id]

     A__	=    self.convert_ids_to_tokens(self.prefix_tokens				)
     A__	=    self.convert_ids_to_tokens(self.suffix_tokens				)

     A__	=    processors.TemplateProcessing(
         single=prefix_tokens_str + ["$A"] + suffix_tokens_str     ,			pair=prefix_tokens_str + ["$A", "$B"] + suffix_tokens_str     ,			special_tokens=list(zip(prefix_tokens_str + suffix_tokens_str     ,			self.prefix_tokens + self.suffix_tokens				)				)     ,			)




    def 							__magic_name__							(   self						:	List[str]     ,			snake_case_						:	str     ,			snake_case_						:	Optional[str] = None				)				->							Tuple[str]:




     '''simple docstring'''

     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(snake_case_				):
      logger.error(F"""Vocabulary path ({save_directory}) should be a directory."""				)
      return
     A__	=    os.path.join(
         snake_case_     ,			(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]				)

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

     return (out_vocab_file,)





