


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


SCREAMING_SNAKE_CASE				:						str			   = logging.get_logger(__name__)

SCREAMING_SNAKE_CASE				:						Any			   = {
    "bert-base-uncased": "https://huggingface.co/bert-base-uncased/resolve/main/config.json",
    # QDQBERT models can be loaded from any BERT checkpoint, available at https://huggingface.co/models?filter=bert
}






class    UpperCamelCase    (						UpperCamelCase__   ):


   '''simple docstring'''







   lowercase    :		str	  ="""qdqbert"""
   def __init__(   self      ,							UpperCamelCase_=3_0522      ,							UpperCamelCase_=768      ,							UpperCamelCase_=12      ,							UpperCamelCase_=12      ,							UpperCamelCase_=3072      ,							UpperCamelCase_="gelu"      ,							UpperCamelCase_=0.1      ,							UpperCamelCase_=0.1      ,							UpperCamelCase_=512      ,							UpperCamelCase_=2      ,							UpperCamelCase_=0.02      ,							UpperCamelCase_=1E-12      ,							UpperCamelCase_=True      ,							UpperCamelCase_=1      ,							UpperCamelCase_=0      ,							UpperCamelCase_=2      ,							**UpperCamelCase_      ,							):
        super().__init__(pad_token_id=SCREAMING_SNAKE_CASE__      ,							bos_token_id=SCREAMING_SNAKE_CASE__      ,							eos_token_id=SCREAMING_SNAKE_CASE__      ,							**SCREAMING_SNAKE_CASE__						)

        lowercase_				:Optional[Any]       			=				vocab_size
        lowercase_				:Optional[Any]       			=				max_position_embeddings
        lowercase_				:Optional[Any]       			=				hidden_size
        lowercase_				:int       			=				num_hidden_layers
        lowercase_				:List[Any]       			=				num_attention_heads
        lowercase_				:List[str]       			=				intermediate_size
        lowercase_				:Optional[int]       			=				hidden_act
        lowercase_				:Tuple       			=				hidden_dropout_prob
        lowercase_				:Dict       			=				attention_probs_dropout_prob
        lowercase_				:Any       			=				initializer_range
        lowercase_				:List[str]       			=				type_vocab_size
        lowercase_				:Optional[Any]       			=				layer_norm_eps
        lowercase_				:Any       			=				use_cache







from __future__ import annotations

from typing import Generic, TypeVar

UpperCamelCase								=     TypeVar('T')





class  __lowerCamelCase       (    Generic[T]    ):




    """simple docstring"""

    def __init__(       self     :     List[str]   ,	SCREAMING_SNAKE_CASE__     :     T   )      ->       List[Any]:
         lowerCAmelCase__		= data  # Assign data
         lowerCAmelCase__		= None  # Initialize next as null
         lowerCAmelCase__		= None  # Initialize prev as null






class  __lowerCamelCase       (    Generic[T]    ):




    """simple docstring"""

    def __init__(       self     :     Any   )      ->       None:
         lowerCAmelCase__		= None


    def    a      (       self     :     Tuple   ,	SCREAMING_SNAKE_CASE__     :     T   )      ->       None:
         if self.head is None:
              lowerCAmelCase__		= Node(SCREAMING_SNAKE_CASE__   )
         else:
              lowerCAmelCase__		= Node(SCREAMING_SNAKE_CASE__   )
              lowerCAmelCase__		= new_node
              lowerCAmelCase__		= self.head
              lowerCAmelCase__		= None
              lowerCAmelCase__		= new_node


    def    a      (       self     :     int   )      ->       T | None:
         if self.head is None:
              return None
         else:
              assert self.head is not None
              lowerCAmelCase__		= self.head.data
              lowerCAmelCase__		= self.head.next
              if self.head is not None:
                   lowerCAmelCase__		= None
              return temp


    def    a      (       self     :     int   )      ->       T | None:
         return self.head.data if self.head is not None else None


    def __len__(       self     :     List[str]   )      ->       int:
         lowerCAmelCase__		= self.head
         lowerCAmelCase__		= 0
         while temp is not None:
              count += 1
              lowerCAmelCase__		= temp.next
         return count


    def    a      (       self     :     Tuple   )      ->       bool:
         return self.head is None


    def    a      (       self     :     Dict   )      ->       None:
         print("stack elements are:"   )
         lowerCAmelCase__		= self.head
         while temp is not None:
              print(temp.data   ,	end="->"   )
              lowerCAmelCase__		= temp.next


# Code execution starts here
if __name__ == "__main__":
     # Start with the empty stack
     UpperCamelCase								=     Stack()

     # Insert 4 at the beginning. So stack becomes 4->None
     print('Stack operations using Doubly LinkedList')
     stack.push(4)

     # Insert 5 at the beginning. So stack becomes 4->5->None
     stack.push(5)

     # Insert 6 at the beginning. So stack becomes 4->5->6->None
     stack.push(6)

     # Insert 7 at the beginning. So stack becomes 4->5->6->7->None
     stack.push(7)

     # Print the stack
     stack.print_stack()

     # Print the top element
     print('\nTop element is ', stack.top())

     # Print the stack size
     print('Size of the stack is ', len(stack))

     # pop the top element
     stack.pop()

     # pop the top element
     stack.pop()

     # two elements have now been popped off
     stack.print_stack()

     # Print True if the stack is empty else False
     print('\nstack is empty:', stack.is_empty())
