




class     a__ :







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



          '''simple docstring'''



          a											=   data
          a											=   None
          a											=   None







     def __str__(			self				)						->					Dict:



          '''simple docstring'''



          return F'''{self.data}'''







class     a__ :







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



          '''simple docstring'''



          a											=   None
          a											=   None







     def __iter__(			self				)						->					int:



          '''simple docstring'''



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







     def __str__(			self				)						->					Tuple:



          '''simple docstring'''



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







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



          '''simple docstring'''



          return sum(1 for _ in self				)







     def     lowerCAmelCase_       (			self						,	A				)						->					Tuple:



          '''simple docstring'''



          self.insert_at_nth(0						,	A				)







     def     lowerCAmelCase_       (			self						,	A				)						->					Any:



          '''simple docstring'''



          self.insert_at_nth(len(self				)						,	A				)







     def     lowerCAmelCase_       (			self						,	A						,	A				)						->					str:



          '''simple docstring'''



          a											=   len(self				)

          if not 0 <= index <= length:
               raise IndexError("list index out of range"				)
          a											=   Node(A				)
          if self.head is None:
               a											=   a											=   new_node
          elif index == 0:
               a											=   new_node
               a											=   self.head
               a											=   new_node
          elif index == length:
               a											=   new_node
               a											=   self.tail
               a											=   new_node
          else:
               a											=   self.head
               for _ in range(0						,	A				):
                    a											=   temp.next
               a											=   new_node
               a											=   temp.previous
               a											=   temp
               a											=   new_node







     def     lowerCAmelCase_       (			self				)						->					int:



          '''simple docstring'''



          return self.delete_at_nth(0				)







     def     lowerCAmelCase_       (			self				)						->					Dict:



          '''simple docstring'''



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







     def     lowerCAmelCase_       (			self						,	A				)						->					int:



          '''simple docstring'''



          a											=   len(self				)

          if not 0 <= index <= length - 1:
               raise IndexError("list index out of range"				)
          a											=   self.head  # default first node
          if length == 1:
               a											=   a											=   None
          elif index == 0:
               a											=   self.head.next
               a											=   None
          elif index == length - 1:
               a											=   self.tail
               a											=   self.tail.previous
               a											=   None
          else:
               a											=   self.head
               for _ in range(0						,	A				):
                    a											=   temp.next
               a											=   temp
               a											=   temp.previous
               a											=   temp.next
          return delete_node.data







     def     lowerCAmelCase_       (			self						,	A				)						->					str:



          '''simple docstring'''



          a											=   self.head

          while current.data != data:  # Find the position to delete
               if current.next:
                    a											=   current.next
               else:  # We have reached the end an no value matches
                    raise ValueError("No data matching given value"				)

          if current == self.head:
               self.delete_head()

          elif current == self.tail:
               self.delete_tail()

          else:  # Before: 1 <--> 2(current) <--> 3
               a											=   current.next  # 1 --> 3
               a											=   current.previous  # 1 <--> 3
          return data







     def     lowerCAmelCase_       (			self				)						->					int:



          '''simple docstring'''



          return len(self				) == 0







def       SCREAMING_SNAKE_CASE							(     )    ->  None:
     a											=   DoublyLinkedList()
     assert linked_list.is_empty() is True
     assert str(__UpperCamelCase) == ""

     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(__UpperCamelCase) == i
          linked_list.insert_at_nth(__UpperCamelCase	,      i + 1)
     assert str(__UpperCamelCase) == "->".join(str(__UpperCamelCase) for i in range(1	,      11))

     linked_list.insert_at_head(0)
     linked_list.insert_at_tail(11)
     assert str(__UpperCamelCase) == "->".join(str(__UpperCamelCase) for i in range(0	,      12))

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


if __name__ == "__main__":
   from doctest import testmod

   testmod()







from dataclasses import dataclass
from typing import List, Optional, Union

import numpy as np
import PIL

from ...utils import BaseOutput, is_invisible_watermark_available, is_torch_available, is_transformers_available




@dataclass
class     a__ (      UpperCamelCase__   ):
     a	:    Union[List[PIL.Image.Image], np.ndarray]


if is_transformers_available() and is_torch_available() and is_invisible_watermark_available():
   from .pipeline_stable_diffusion_xl import StableDiffusionXLPipeline
   from .pipeline_stable_diffusion_xl_imgaimg import StableDiffusionXLImgaImgPipeline

