
'''simple docstring'''

from __future__ import annotations

from collections.abc import Iterator
from typing import Any


class  _UpperCAmelCase :

     """simple docstring"""

     def __init__(      self							,		lowerCAmelCase_ ):

       '''simple docstring'''

       a_      :	Any      =							data
       a_      :	Node | None      =							None







class  _UpperCAmelCase :

     """simple docstring"""

     def __init__(      self ):

       '''simple docstring'''

       a_      :	Optional[int]      =							None
       a_      :	Optional[Any]      =							None


     def __iter__(      self ):

       '''simple docstring'''

       a_      :	Optional[int]      =							self.head
       while self.head:
         yield node.data
         a_      :	Optional[int]      =							node.next
         if node == self.head:
           break


     def __len__(      self ):

       '''simple docstring'''

       return sum(1 for _ in self )


     def __repr__(      self ):

       '''simple docstring'''

       return "->".join(str(lowerCAmelCase_ ) for item in iter(self ) )


     def 							_lowerCAmelCase  (      self							,		lowerCAmelCase_ ):

       '''simple docstring'''

       self.insert_nth(len(self )							,		lowerCAmelCase_ )


     def 							_lowerCAmelCase  (      self							,		lowerCAmelCase_ ):

       '''simple docstring'''

       self.insert_nth(0							,		lowerCAmelCase_ )


     def 							_lowerCAmelCase  (      self							,		lowerCAmelCase_							,		lowerCAmelCase_ ):

       '''simple docstring'''

       if index < 0 or index > len(self ):
         raise IndexError("""list index out of range.""" )
       a_      :	List[Any]      =							Node(lowerCAmelCase_ )
       if self.head is None:
         a_      :	int      =							new_node  # first node points itself
         a_      :	int      =							new_node
       elif index == 0:  # insert at head
         a_      :	int      =							self.head
         a_      :	Union[str, Any]      =							new_node
       else:
         a_      :	Optional[Any]      =							self.head
         for _ in range(index - 1 ):
           a_      :	List[Any]      =							temp.next
         a_      :	Tuple      =							temp.next
         a_      :	int      =							new_node
         if index == len(self ) - 1:  # insert at tail
           a_      :	Optional[Any]      =							new_node


     def 							_lowerCAmelCase  (      self ):

       '''simple docstring'''

       return self.delete_nth(0 )


     def 							_lowerCAmelCase  (      self ):

       '''simple docstring'''

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


     def 							_lowerCAmelCase  (      self							,		lowerCAmelCase_ = 0 ):

       '''simple docstring'''

       if not 0 <= index < len(self ):
         raise IndexError("""list index out of range.""" )
       a_      :	int      =							self.head
       if self.head == self.tail:  # just one node
         a_      :	Tuple      =							None
       elif index == 0:  # delete head node
         a_      :	int      =							self.tail.next.next
         a_      :	str      =							self.head.next
       else:
         a_      :	Dict      =							self.head
         for _ in range(index - 1 ):
           a_      :	Union[str, Any]      =							temp.next
         a_      :	Dict      =							temp.next
         a_      :	Dict      =							temp.next.next
         if index == len(self ) - 1:  # delete at tail
           a_      :	int      =							temp
       return delete_node.data






     def 							_lowerCAmelCase  (      self ):

       '''simple docstring'''

       return len(self ) == 0







def 	_snake_case						(      ):
  """simple docstring"""







  a_      :	List[Any]      =							CircularLinkedList()
  assert len(A_   ) == 0
  assert circular_linked_list.is_empty() is True
  assert str(A_   ) == ""

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

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

  try:
    circular_linked_list.delete_nth(-1   )
    raise AssertionError
  except IndexError:
    assert True

  try:
    circular_linked_list.delete_nth(0   )
    raise AssertionError
  except IndexError:
    assert True

  assert circular_linked_list.is_empty() is True
  for i in range(5   ):
    assert len(A_   ) == i
    circular_linked_list.insert_nth(A_     ,		i + 1   )
  assert str(A_   ) == "->".join(str(A_   ) for i in range(1     ,		6   )   )

  circular_linked_list.insert_tail(6   )
  assert str(A_   ) == "->".join(str(A_   ) for i in range(1     ,		7   )   )
  circular_linked_list.insert_head(0   )
  assert str(A_   ) == "->".join(str(A_   ) for i in range(0     ,		7   )   )

  assert circular_linked_list.delete_front() == 0
  assert circular_linked_list.delete_tail() == 6
  assert str(A_   ) == "->".join(str(A_   ) for i in range(1     ,		6   )   )
  assert circular_linked_list.delete_nth(2   ) == 3

  circular_linked_list.insert_nth(2     ,		3   )
  assert str(A_   ) == "->".join(str(A_   ) for i in range(1     ,		6   )   )

  assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
    import doctest

    doctest.testmod()




'''simple docstring'''

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

import numpy as np
import PIL
from PIL import Image

from ...utils import BaseOutput, is_torch_available, is_transformers_available


@dataclass
class  _UpperCAmelCase ( lowerCAmelCase__    ):

     """simple docstring"""

     a_    	=					42
     a_    	=					42


if is_transformers_available() and is_torch_available():
    from .pipeline_semantic_stable_diffusion import SemanticStableDiffusionPipeline


