from __future__ import annotations

from collections.abc import Iterator
from typing import Any






class 		_lowerCamelCase		:
    def __init__(	self			,			lowerCAmelCase )							->       Optional[int]:
     SCREAMING_SNAKE_CASE__: Any=   data
     SCREAMING_SNAKE_CASE__: Node | None=   None






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



    def     UpperCamelCase_					(	self )							->       bool:
     return len(self ) == 0







def       A__   (						):
 SCREAMING_SNAKE_CASE__: Union[str, 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"""




from ...configuration_utils import PretrainedConfig
from ...utils import logging


__magic_name__						: str    =				logging.get_logger(__name__)

__magic_name__						: List[Any]    =				{
    'uclanlp/visualbert-vqa': 'https://huggingface.co/uclanlp/visualbert-vqa/resolve/main/config.json',
    'uclanlp/visualbert-vqa-pre': 'https://huggingface.co/uclanlp/visualbert-vqa-pre/resolve/main/config.json',
    'uclanlp/visualbert-vqa-coco-pre': (
        'https://huggingface.co/uclanlp/visualbert-vqa-coco-pre/resolve/main/config.json'
    ),
    'uclanlp/visualbert-vcr': 'https://huggingface.co/uclanlp/visualbert-vcr/resolve/main/config.json',
    'uclanlp/visualbert-vcr-pre': 'https://huggingface.co/uclanlp/visualbert-vcr-pre/resolve/main/config.json',
    'uclanlp/visualbert-vcr-coco-pre': (
        'https://huggingface.co/uclanlp/visualbert-vcr-coco-pre/resolve/main/config.json'
    ),
    'uclanlp/visualbert-nlvr2': 'https://huggingface.co/uclanlp/visualbert-nlvr2/resolve/main/config.json',
    'uclanlp/visualbert-nlvr2-pre': 'https://huggingface.co/uclanlp/visualbert-nlvr2-pre/resolve/main/config.json',
    'uclanlp/visualbert-nlvr2-coco-pre': (
        'https://huggingface.co/uclanlp/visualbert-nlvr2-coco-pre/resolve/main/config.json'
    )
    # See all VisualBERT models at https://huggingface.co/models?filter=visual_bert
}




class 			__snake_case   (lowerCamelCase  ):
							__a					 =       '''visual_bert'''




							def __init__(     self:    Any     ,							A_:    List[str]=3_05_22     ,							A_:    Tuple=7_68     ,							A_:    Dict=5_12     ,							A_:    List[Any]=12     ,							A_:    str=12     ,							A_:    Dict=30_72     ,							A_:    str="gelu"     ,							A_:    Union[str, Any]=0.1     ,							A_:    Any=0.1     ,							A_:    List[Any]=5_12     ,							A_:    int=2     ,							A_:    int=0.02     ,							A_:    Any=1E-12     ,							A_:    List[str]=False     ,							A_:    str=True     ,							A_:    Union[str, Any]=1     ,							A_:    Optional[int]=0     ,							A_:    Dict=2     ,							**A_:    Optional[int]     ,							):
										super().__init__(pad_token_id=A_     ,							bos_token_id=A_     ,							eos_token_id=A_     ,							**A_   )

										__lowerCamelCase          =      vocab_size
										__lowerCamelCase          =      max_position_embeddings
										__lowerCamelCase          =      hidden_size
										__lowerCamelCase          =      visual_embedding_dim
										__lowerCamelCase          =      num_hidden_layers
										__lowerCamelCase          =      num_attention_heads
										__lowerCamelCase          =      intermediate_size
										__lowerCamelCase          =      hidden_act
										__lowerCamelCase          =      hidden_dropout_prob
										__lowerCamelCase          =      attention_probs_dropout_prob
										__lowerCamelCase          =      initializer_range
										__lowerCamelCase          =      type_vocab_size
										__lowerCamelCase          =      layer_norm_eps
										__lowerCamelCase          =      bypass_transformer
										__lowerCamelCase          =      special_visual_initialize




