






from __future__ import annotations

from collections.abc import Iterable
from dataclasses import dataclass
from typing import Any




class        snake_case_					:

      """simple docstring"""



      snake_case__   					=			("""_front""", """_back""", """_len""")




      @dataclass
      class        snake_case_					:

            """simple docstring"""



            snake_case__   					=			None
            snake_case__   					=			None
            snake_case__   					=			None




      class        snake_case_					:

            """simple docstring"""



            snake_case__   					=			("""_cur""",)



            def __init__(self:				int   ,				__UpperCAmelCase:				Any      )						->    List[str]:




                 '''simple docstring'''



                 __a				:	Union[str, Any]			=				cur



            def __iter__(self:				Optional[int]      )						->    Dict:




                 '''simple docstring'''



                 return self



            def 					UpperCAmelCase__				(self:				Union[str, Any]      )						->    Optional[Any]:




                 '''simple docstring'''



                 if self._cur is None:
                      # finished iterating
                      raise StopIteration
                 __a				:	str			=				self._cur.val
                 __a				:	str			=				self._cur.next_node

                 return val



      def __init__(self:				List[Any]   ,				__UpperCAmelCase:				Dict = None      )						->    Tuple:




           '''simple docstring'''



           __a				:	Any			=				None
           __a				:	Any			=				None
           __a				:	int			=				0

           if iterable is not None:
                # append every value to the deque
                for val in iterable:
                     self.append(_lowerCamelCase      )



      def 					UpperCAmelCase__				(self:				Optional[int]   ,				__UpperCAmelCase:				str      )						->    Any:




           '''simple docstring'''



           __a				:	Optional[Any]			=				self._Node(_lowerCamelCase   ,				_lowerCamelCase   ,				_lowerCamelCase      )
           if self.is_empty():
                # front = back
                __a				:	List[str]			=				node
                __a				:	Dict			=				1
           else:
                # connect nodes
                __a				:	str			=				node
                __a				:	List[Any]			=				self._back
                __a				:	List[Any]			=				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 					UpperCAmelCase__				(self:				str   ,				__UpperCAmelCase:				Dict      )						->    Any:




           '''simple docstring'''



           __a				:	List[str]			=				self._Node(_lowerCamelCase   ,				_lowerCamelCase   ,				_lowerCamelCase      )
           if self.is_empty():
                # front = back
                __a				:	Optional[int]			=				node
                __a				:	int			=				1
           else:
                # connect nodes
                __a				:	Union[str, Any]			=				self._front
                __a				:	Optional[int]			=				node
                __a				:	List[Any]			=				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 					UpperCAmelCase__				(self:				Optional[int]   ,				__UpperCAmelCase:				Union[str, Any]      )						->    str:




           '''simple docstring'''



           for val in iterable:
                self.append(_lowerCamelCase      )



      def 					UpperCAmelCase__				(self:				str   ,				__UpperCAmelCase:				str      )						->    str:




           '''simple docstring'''



           for val in iterable:
                self.appendleft(_lowerCamelCase      )



      def 					UpperCAmelCase__				(self:				Any      )						->    Optional[int]:




           '''simple docstring'''



           assert not self.is_empty(), "Deque is empty."

           __a				:	Optional[Any]			=				self._back
           __a				:	Any			=				self._back.prev_node  # set new back
           # drop the last node - python will deallocate memory automatically
           __a				:	Optional[Any]			=				None

           self._len -= 1

           return topop.val



      def 					UpperCAmelCase__				(self:				Union[str, Any]      )						->    Union[str, Any]:




           '''simple docstring'''



           assert not self.is_empty(), "Deque is empty."

           __a				:	Optional[Any]			=				self._front
           __a				:	str			=				self._front.next_node  # set new front and drop the first node
           __a				:	Optional[int]			=				None

           self._len -= 1

           return topop.val



      def 					UpperCAmelCase__				(self:				Optional[Any]      )						->    str:




           '''simple docstring'''



           return self._front is None



      def __len__(self:				Dict      )						->    Optional[Any]:




           '''simple docstring'''



           return self._len



      def __eq__(self:				List[Any]   ,				__UpperCAmelCase:				List[str]      )						->    Optional[Any]:




           '''simple docstring'''



           if not isinstance(_lowerCamelCase   ,				_lowerCamelCase      ):
                return NotImplemented

           __a				:	str			=				self._front
           __a				:	str			=				other._front

           # if the length of the dequeues are not the same, they are not equal
           if len(self      ) != len(_lowerCamelCase      ):
                return False

           while me is not None and oth is not None:
                # compare every value
                if me.val != oth.val:
                     return False
                __a				:	List[Any]			=				me.next_node
                __a				:	int			=				oth.next_node

           return True



      def __iter__(self:				Union[str, Any]      )						->    str:




           '''simple docstring'''



           return Deque._Iterator(self._front      )



      def __repr__(self:				Union[str, Any]      )						->    Union[str, Any]:




           '''simple docstring'''



           __a				:	List[str]			=				[]
           __a				:	Union[str, Any]			=				self._front
           while aux is not None:
                # append the values in a list to display
                values_list.append(aux.val      )
                __a				:	str			=				aux.next_node

           return f'[{", ".join(repr(_lowerCamelCase      ) for val in values_list      )}]'


if __name__ == "__main__":
   import doctest

   doctest.testmod()













import warnings

from .generation import GenerationMixin




class        snake_case_					(						__UpperCamelCase			):

						"""simple docstring"""



						warnings.warn(
						    """Importing `GenerationMixin` from `src/transformers/generation_utils.py` is deprecated and will """
						    """be removed in Transformers v5. Import as `from transformers import GenerationMixin` instead."""		,       __UpperCamelCase		,       )





