


"""simple docstring"""






from __future__ import annotations

from collections.abc import Iterator
from typing import Any






class      A:

		"""simple docstring"""





		def __init__( self					,				SCREAMING_SNAKE_CASE__   )      ->	Dict:

					"""simple docstring"""



					_UpperCamelCase					:Any					     =	data
					_UpperCamelCase					:Node | None					     =	None






class      A:

		"""simple docstring"""





		def __init__( self   )      ->	int:

					"""simple docstring"""



					_UpperCamelCase					:List[Any]					     =	None
					_UpperCamelCase					:Optional[Any]					     =	None
		def __iter__( self   )      ->	Iterator[Any]:

					"""simple docstring"""



					_UpperCamelCase					:Any					     =	self.head
					while self.head:
								yield node.data
								_UpperCamelCase					:List[str]					     =	node.next
								if node == self.head:
											break
		def __len__( self   )      ->	int:

					"""simple docstring"""



					return sum(1 for _ in self   )
		def __repr__( self   )      ->	Any:

					"""simple docstring"""



					return "->".join(str(SCREAMING_SNAKE_CASE__   ) for item in iter(self   )   )
		def   _UpperCamelCase( self					,				SCREAMING_SNAKE_CASE__   )      ->	None:

					"""simple docstring"""



					self.insert_nth(len(self   )					,				SCREAMING_SNAKE_CASE__   )
		def   _UpperCamelCase( self					,				SCREAMING_SNAKE_CASE__   )      ->	None:

					"""simple docstring"""



					self.insert_nth(0					,				SCREAMING_SNAKE_CASE__   )
		def   _UpperCamelCase( self					,				SCREAMING_SNAKE_CASE__					,				SCREAMING_SNAKE_CASE__   )      ->	None:

					"""simple docstring"""



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

					"""simple docstring"""



					return self.delete_nth(0   )
		def   _UpperCamelCase( self   )      ->	Any:

					"""simple docstring"""



					return self.delete_nth(len(self   ) - 1   )
		def   _UpperCamelCase( self					,				SCREAMING_SNAKE_CASE__ = 0   )      ->	Any:

					"""simple docstring"""



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





		def   _UpperCamelCase( self   )      ->	bool:

					"""simple docstring"""



					return len(self   ) == 0





def 				A_       ( )					->  None:
			_UpperCamelCase					:List[Any]					     =	CircularLinkedList()
			assert len(snake_case__		) == 0
			assert circular_linked_list.is_empty() is True
			assert str(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(snake_case__		) == i
						circular_linked_list.insert_nth(snake_case__       ,					i + 1		)
			assert str(snake_case__		) == "->".join(str(snake_case__		) for i in range(1       ,					6		)		)

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

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

			assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
					import doctest

					doctest.testmod()





"""simple docstring"""






import os
import sys

UpperCamelCase__				:Union[str, Any]			   =	os.path.join(os.path.dirname(__file__), """src""")
sys.path.append(SRC_DIR)


from transformers import (
    AutoConfig,
    AutoModel,
    AutoModelForCausalLM,
    AutoModelForMaskedLM,
    AutoModelForQuestionAnswering,
    AutoModelForSequenceClassification,
    AutoTokenizer,
    add_start_docstrings,
)


UpperCamelCase__				:List[Any]			   =	[
    """torch""",
    """numpy""",
    """tokenizers""",
    """filelock""",
    """requests""",
    """tqdm""",
    """regex""",
    """sentencepiece""",
    """sacremoses""",
    """importlib_metadata""",
    """huggingface_hub""",
]





@add_start_docstrings(AutoConfig.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  int:
			return AutoConfig.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoTokenizer.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  int:
			return AutoTokenizer.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoModel.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  Dict:
			return AutoModel.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoModelForCausalLM.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  Dict:
			return AutoModelForCausalLM.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoModelForMaskedLM.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  Dict:
			return AutoModelForMaskedLM.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoModelForSequenceClassification.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  Dict:
			return AutoModelForSequenceClassification.from_pretrained(*snake_case__       ,					**snake_case__		)





@add_start_docstrings(AutoModelForQuestionAnswering.__doc__		)
def 				A_       ( *snake_case__       ,					**snake_case__		)					->  Union[str, Any]:
			return AutoModelForQuestionAnswering.from_pretrained(*snake_case__       ,					**snake_case__		)

