'''simple docstring'''




from __future__ import annotations

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

class   _lowercase:



   """simple docstring"""





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

   @dataclass
   class   _lowercase:



      """simple docstring"""





      __lowerCamelCase    =  None
      __lowerCamelCase    =  None
      __lowerCamelCase    =  None




   class   _lowercase:



      """simple docstring"""





      __lowerCamelCase    =  ("""_cur""",)





      def __init__(							self:    Dict			,a:    Deque._Node | None	):
       __UpperCAmelCase         =					cur





      def __iter__(							self:    List[Any]	):
       return self





      def 			snake_case	(							self:    str	):







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

       return val





   def __init__(							self:    str			,a:    Iterable[Any] | None = None	):
    __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 			snake_case	(							self:    Tuple			,a:    Any	):
    __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 			snake_case	(							self:    List[Any]			,a:    Any	):
    __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 			snake_case	(							self:    Tuple			,a:    Iterable[Any]	):







    for val in iterable:
     self.append(a	)





   def 			snake_case	(							self:    Any			,a:    Iterable[Any]	):







    for val in iterable:
     self.appendleft(a	)





   def 			snake_case	(							self:    Optional[int]	):
    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 			snake_case	(							self:    Optional[Any]	):
    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 			snake_case	(							self:    Optional[int]	):
    return self._front is None





   def __len__(							self:    Optional[int]	):
    return self._len





   def __eq__(							self:    Optional[int]			,a:    object	):







    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:    Optional[Any]	):
    return Deque._Iterator(self._front	)





   def __repr__(							self:    List[str]	):
    __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()




'''simple docstring'''




from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_torch_available,
)


_UpperCamelCase				:		int       			=		{
    'configuration_align': [
        'ALIGN_PRETRAINED_CONFIG_ARCHIVE_MAP',
        'AlignConfig',
        'AlignTextConfig',
        'AlignVisionConfig',
    ],
    'processing_align': ['AlignProcessor'],
}

try:
     if not is_torch_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     _UpperCamelCase				:		Optional[Any]       			=		[
         'ALIGN_PRETRAINED_MODEL_ARCHIVE_LIST',
         'AlignModel',
         'AlignPreTrainedModel',
         'AlignTextModel',
         'AlignVisionModel',
     ]

if TYPE_CHECKING:
     from .configuration_align import (
         ALIGN_PRETRAINED_CONFIG_ARCHIVE_MAP,
         AlignConfig,
         AlignTextConfig,
         AlignVisionConfig,
     )
     from .processing_align import AlignProcessor

     try:
          if not is_torch_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .modeling_align import (
              ALIGN_PRETRAINED_MODEL_ARCHIVE_LIST,
              AlignModel,
              AlignPreTrainedModel,
              AlignTextModel,
              AlignVisionModel,
          )

else:
     import sys

     _UpperCamelCase				:		str       			=		_LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)



