






'''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   __SCREAMING_SNAKE_CASE(	a_	):
							_UpperCAmelCase     =       4_2
							_UpperCAmelCase     =       4_2


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












from __future__ import annotations

from collections.abc import Iterator
from typing import Any


class   __SCREAMING_SNAKE_CASE:
							def __init__(     self:      int       ,	UpperCamelCase:      Any						)		->		List[Any]:
											snake_case__									=     data
											snake_case__									=     None


class   __SCREAMING_SNAKE_CASE:
							def __init__(     self:      Dict						)		->		Optional[Any]:
											snake_case__									=     None
											snake_case__									=     None
							def __iter__(     self:      Optional[int]						)		->		Iterator[Any]:
											snake_case__									=     self.head
											while self.head:
															yield node.data
															snake_case__									=     node.next
															if node == self.head:
																			break
							def __len__(     self:      int						)		->		int:
											return sum(1 for _ in self						)
							def __repr__(     self:      int						)		->		Optional[int]:
											return "->".join(str(UpperCamelCase						) for item in iter(self						)						)
							def lowerCAmelCase_ (     self:      Union[str, Any]       ,	UpperCamelCase:      Any						)		->		None:
											self.insert_nth(len(self						)       ,	UpperCamelCase						)
							def lowerCAmelCase_ (     self:      Tuple       ,	UpperCamelCase:      Any						)		->		None:
											self.insert_nth(0       ,	UpperCamelCase						)
							def lowerCAmelCase_ (     self:      int       ,	UpperCamelCase:      int       ,	UpperCamelCase:      Any						)		->		None:
											if index < 0 or index > len(self						):
															raise IndexError('list index out of range.'						)
											snake_case__									=     Node(UpperCamelCase						)
											if self.head is None:
															snake_case__									=     new_node  # first node points itself
															snake_case__									=     snake_case__									=     new_node
											elif index == 0:  # insert at head
															snake_case__									=     self.head
															snake_case__									=     snake_case__									=     new_node
											else:
															snake_case__									=     self.head
															for _ in range(index - 1						):
																			snake_case__									=     temp.next
															snake_case__									=     temp.next
															snake_case__									=     new_node
															if index == len(self						) - 1:  # insert at tail
																			snake_case__									=     new_node
							def lowerCAmelCase_ (     self:      Optional[int]						)		->		Union[str, Any]:
											return self.delete_nth(0						)
							def lowerCAmelCase_ (     self:      Union[str, Any]						)		->		Any:
											return self.delete_nth(len(self						) - 1						)
							def lowerCAmelCase_ (     self:      str       ,	UpperCamelCase:      int = 0						)		->		Any:
											if not 0 <= index < len(self						):
															raise IndexError('list index out of range.'						)
											snake_case__									=     self.head
											if self.head == self.tail:  # just one node
															snake_case__									=     snake_case__									=     None
											elif index == 0:  # delete head node
															snake_case__									=     self.tail.next.next
															snake_case__									=     self.head.next
											else:
															snake_case__									=     self.head
															for _ in range(index - 1						):
																			snake_case__									=     temp.next
															snake_case__									=     temp.next
															snake_case__									=     temp.next.next
															if index == len(self						) - 1:  # delete at tail
																			snake_case__									=     temp
											return delete_node.data


							def lowerCAmelCase_ (     self:      Union[str, Any]						)		->		bool:
											return len(self						) == 0


def      a_ (      )			->			None:







				"""simple docstring"""
				snake_case__									=     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()




