

"""simple docstring"""


from __future__ import annotations

from collections.abc import Iterator
from typing import Any

class    __a							:






     '''simple docstring'''

     def __init__(  self		,			_a     )     ->					int:


           """simple docstring"""


           SCREAMING_SNAKE_CASE__      :					Any											=		data
           SCREAMING_SNAKE_CASE__      :					Node | None											=		None





class    __a							:






     '''simple docstring'''

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


           """simple docstring"""


           SCREAMING_SNAKE_CASE__      :					str											=		None
           SCREAMING_SNAKE_CASE__      :					Optional[int]											=		None

     def __iter__(  self     )     ->					Iterator[Any]:


           """simple docstring"""


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

     def __len__(  self     )     ->					int:


           """simple docstring"""


           return sum(1 for _ in self     )

     def __repr__(  self     )     ->					int:


           """simple docstring"""


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

     def     _a	(  self		,			_a     )     ->					None:


           """simple docstring"""


           self.insert_nth(len(self     )		,			lowercase_     )

     def     _a	(  self		,			_a     )     ->					None:


           """simple docstring"""


           self.insert_nth(0		,			lowercase_     )

     def     _a	(  self		,			_a		,			_a     )     ->					None:


           """simple docstring"""


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

     def     _a	(  self     )     ->					Dict:


           """simple docstring"""


           return self.delete_nth(0     )

     def     _a	(  self     )     ->					Any:


           """simple docstring"""


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

     def     _a	(  self		,			_a = 0     )     ->					Any:


           """simple docstring"""


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





     def     _a	(  self     )     ->					bool:


           """simple docstring"""


           return len(self     ) == 0





def        _lowercase    (			)				-> Tuple:
      SCREAMING_SNAKE_CASE__      :					Dict											=		CircularLinkedList()
      assert len(SCREAMING_SNAKE_CASE__							) == 0
      assert circular_linked_list.is_empty() is True
      assert str(SCREAMING_SNAKE_CASE__							) == ""

      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(SCREAMING_SNAKE_CASE__							) == i
            circular_linked_list.insert_nth(SCREAMING_SNAKE_CASE__     ,    i + 1							)
      assert str(SCREAMING_SNAKE_CASE__							) == "->".join(str(SCREAMING_SNAKE_CASE__							) for i in range(1     ,    6							)							)

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

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

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

      assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
  import doctest

  doctest.testmod()








from ...utils import (
    OptionalDependencyNotAvailable,
    is_torch_available,
    is_transformers_available,
    is_transformers_version,
)


try:
 if not (is_transformers_available() and is_torch_available()):
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 from ...utils.dummy_torch_and_transformers_objects import ShapEPipeline
else:
 from .camera import create_pan_cameras
 from .pipeline_shap_e import ShapEPipeline
 from .pipeline_shap_e_img2img import ShapEImgaImgPipeline
 from .renderer import (
     BoundingBoxVolume,
     ImportanceRaySampler,
     MLPNeRFModelOutput,
     MLPNeRSTFModel,
     ShapEParamsProjModel,
     ShapERenderer,
     StratifiedRaySampler,
     VoidNeRFModel,
 )


