code: 
  
  
  '''simple docstring'''
  
  from __future__ import annotations
  
  from collections.abc import Iterable
  from dataclasses import dataclass
  from typing import Any
  
  
  
  
  
  
  
  class  UpperCAmelCase :
   _lowerCamelCase :					Optional[Any]    					=					('_front', '_back', '_len')
  
  
  
  
  
  
  
   @dataclass
   class  UpperCAmelCase :
    _lowerCamelCase :					Any    					=					None
    _lowerCamelCase :					Deque._Node | None    					=					None
    _lowerCamelCase :					Deque._Node | None    					=					None
  
  
  
  
  
  
  
   class  UpperCAmelCase :
    _lowerCamelCase :					List[Any]    					=					('_cur',)
  
    def __init__( self :	int,					a_ :	Deque._Node | None					):
  
  
  
  
  
       """simple docstring"""
  
  
  
       UpperCamelCase__ 						=						cur
  
    def __iter__( self :	Tuple					):
  
  
  
  
  
       """simple docstring"""
  
  
  
       return self
  
    def 		lowercase_						( self :	List[Any]					):
  
  
  
  
  
       """simple docstring"""
  
  
  
       if self._cur is None:
          # finished iterating
          raise StopIteration
       UpperCamelCase__ 						=						self._cur.val
       UpperCamelCase__ 						=						self._cur.next_node
  
       return val
  
  
  
  
  
  
  
   def __init__( self :	List[Any],					a_ :	Iterable[Any] | None = None					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      UpperCamelCase__ 						=						None
      UpperCamelCase__ 						=						None
      UpperCamelCase__ 						=						0
  
      if iterable is not None:
         # append every value to the deque
         for val in iterable:
            self.append(a_					)
  
   def 		lowercase_						( self :	Union[str, Any],					a_ :	Any					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      UpperCamelCase__ 						=						self._Node(a_,					a_,					a_					)
      if self.is_empty():
         # front = back
         UpperCamelCase__ 						=						UpperCamelCase__ 						=						node
         UpperCamelCase__ 						=						1
      else:
         # connect nodes
         UpperCamelCase__ 						=						node
         UpperCamelCase__ 						=						self._back
         UpperCamelCase__ 						=						node  # assign new back to the new node
  
         self._len += 1
  
         # make sure there were no errors
         assert not self.is_empty(), "Error on appending value."
  
   def 		lowercase_						( self :	List[Any],					a_ :	Any					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      UpperCamelCase__ 						=						self._Node(a_,					a_,					a_					)
      if self.is_empty():
         # front = back
         UpperCamelCase__ 						=						UpperCamelCase__ 						=						node
         UpperCamelCase__ 						=						1
      else:
         # connect nodes
         UpperCamelCase__ 						=						self._front
         UpperCamelCase__ 						=						node
         UpperCamelCase__ 						=						node  # assign new front to the new node
  
         self._len += 1
  
         # make sure there were no errors
         assert not self.is_empty(), "Error on appending value."
  
   def 		lowercase_						( self :	Dict,					a_ :	Iterable[Any]					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      for val in iterable:
         self.append(a_					)
  
   def 		lowercase_						( self :	Dict,					a_ :	Iterable[Any]					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      for val in iterable:
         self.appendleft(a_					)
  
   def 		lowercase_						( self :	List[Any]					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      assert not self.is_empty(), "Deque is empty."
  
      UpperCamelCase__ 						=						self._back
      UpperCamelCase__ 						=						self._back.prev_node  # set new back
      # drop the last node - python will deallocate memory automatically
      UpperCamelCase__ 						=						None
  
      self._len -= 1
  
      return topop.val
  
   def 		lowercase_						( self :	List[str]					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      assert not self.is_empty(), "Deque is empty."
  
      UpperCamelCase__ 						=						self._front
      UpperCamelCase__ 						=						self._front.next_node  # set new front and drop the first node
      UpperCamelCase__ 						=						None
  
      self._len -= 1
  
      return topop.val
  
   def 		lowercase_						( self :	str					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      return self._front is None
  
   def __len__( self :	str					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      return self._len
  
   def __eq__( self :	int,					a_ :	object					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      if not isinstance(a_,					a_					):
         return NotImplemented
  
      UpperCamelCase__ 						=						self._front
      UpperCamelCase__ 						=						other._front
  
      # if the length of the dequeues are not the same, they are not equal
      if len(self					) != len(a_					):
         return False
  
      while me is not None and oth is not None:
         # compare every value
         if me.val != oth.val:
            return False
         UpperCamelCase__ 						=						me.next_node
         UpperCamelCase__ 						=						oth.next_node
  
      return True
  
   def __iter__( self :	List[str]					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      return Deque._Iterator(self._front					)
  
   def __repr__( self :	Dict					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      UpperCamelCase__ 						=						[]
      UpperCamelCase__ 						=						self._front
      while aux is not None:
         # append the values in a list to display
         values_list.append(aux.val					)
         UpperCamelCase__ 						=						aux.next_node
  
      return f'[{", ".join(repr(a_					) for val in values_list					)}]'
  
  
  if __name__ == "__main__":
         import doctest
  
         doctest.testmod()
style_context: 
  
  
  '''simple docstring'''
  
  from transformers import SqueezeBertTokenizer, SqueezeBertTokenizerFast
  from transformers.testing_utils import require_tokenizers, slow
  
  from ..bert.test_tokenization_bert import BertTokenizationTest
  
  
  
  
  
  
  
  @require_tokenizers
  class  UpperCAmelCase (       SCREAMING_SNAKE_CASE__):
   _lowerCamelCase :					Optional[int]    					=					SqueezeBertTokenizer
   _lowerCamelCase :					List[Any]    					=					SqueezeBertTokenizerFast
   _lowerCamelCase :					int    					=					True
  
   def 		lowercase_						( self :	List[str],					**a_ :	str					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      return SqueezeBertTokenizerFast.from_pretrained(self.tmpdirname,					**a_					)
  
   @slow
   def 		lowercase_						( self :	int					):
  
  
  
  
  
      """simple docstring"""
  
  
  
      UpperCamelCase__ 						=						SqueezeBertTokenizer.from_pretrained("squeezebert/squeezebert-mnli-headless"					)
  
      UpperCamelCase__ 						=						tokenizer.encode("sequence builders",					add_special_tokens=a_					)
      UpperCamelCase__ 						=						tokenizer.encode("multi-sequence build",					add_special_tokens=a_					)
  
      UpperCamelCase__ 						=						tokenizer.build_inputs_with_special_tokens(a_					)
      UpperCamelCase__ 						=						tokenizer.build_inputs_with_special_tokens(a_,					a_					)
  
      assert encoded_sentence == [tokenizer.cls_token_id] + text + [tokenizer.sep_token_id]
      assert encoded_pair == [tokenizer.cls_token_id] + text + [tokenizer.sep_token_id] + text_a + [
          tokenizer.sep_token_id
      ]