'''simple docstring'''





class 				UpperCAmelCase :




    '''simple docstring'''







    def __init__(       self    ,							lowercase__    ,							lowercase__=None    ,							lowercase__=None )							-> List[str]:
         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       data
         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       previous
         SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       next_node






    def __str__(       self )							-> str:
         return F"""{self.data}"""






    def       _UpperCamelCase    (       self )							-> int:
         return self.data






    def       _UpperCamelCase    (       self )							-> Optional[Any]:
         return self.next






    def       _UpperCamelCase    (       self )							-> Any:
         return self.previous






class 				UpperCAmelCase :




    '''simple docstring'''







    def __init__(       self    ,							lowercase__ )							-> Tuple:
         SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       head






    def __iter__(       self )							-> str:
         return self






    def       _UpperCamelCase    (       self )							-> Any:
         if not self.current:
              raise StopIteration
         else:
              SCREAMING_SNAKE_CASE					:			Optional[int]    	=       self.current.get_data()
              SCREAMING_SNAKE_CASE					:			List[str]    	=       self.current.get_next()
              return value






class 				UpperCAmelCase :




    '''simple docstring'''







    def __init__(       self )							-> Union[str, Any]:
         SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       None  # First node in list
         SCREAMING_SNAKE_CASE					:			Dict    	=       None  # Last node in list






    def __str__(       self )							-> Optional[Any]:
         SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       self.head
         SCREAMING_SNAKE_CASE					:			List[str]    	=       []
         while current is not None:
              nodes.append(current.get_data() )
              SCREAMING_SNAKE_CASE					:			Any    	=       current.get_next()
         return " ".join(str(lowercase__ ) for node in nodes )






    def __contains__(       self    ,							lowercase__ )							-> List[str]:
         SCREAMING_SNAKE_CASE					:			Dict    	=       self.head
         while current:
              if current.get_data() == value:
                   return True
              SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       current.get_next()
         return False






    def __iter__(       self )							-> Tuple:
         return LinkedListIterator(self.head )






    def       _UpperCamelCase    (       self )							-> Tuple:
         if self.head:
              return self.head.get_data()
         return None






    def       _UpperCamelCase    (       self )							-> Union[str, Any]:
         if self.tail:
              return self.tail.get_data()
         return None






    def       _UpperCamelCase    (       self    ,							lowercase__ )							-> None:
         if self.head is None:
              SCREAMING_SNAKE_CASE					:			str    	=       node
              SCREAMING_SNAKE_CASE					:			Optional[int]    	=       node
         else:
              self.insert_before_node(self.head    ,							lowercase__ )






    def       _UpperCamelCase    (       self    ,							lowercase__ )							-> None:
         if self.head is None:
              self.set_head(lowercase__ )
         else:
              self.insert_after_node(self.tail    ,							lowercase__ )






    def       _UpperCamelCase    (       self    ,							lowercase__ )							-> None:
         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       Node(lowercase__ )
         if self.head is None:
              self.set_head(lowercase__ )
         else:
              self.set_tail(lowercase__ )






    def       _UpperCamelCase    (       self    ,							lowercase__    ,							lowercase__ )							-> None:
         SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       node
         SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       node.previous

         if node.get_previous() is None:
              SCREAMING_SNAKE_CASE					:			Dict    	=       node_to_insert
         else:
              SCREAMING_SNAKE_CASE					:			List[str]    	=       node_to_insert

         SCREAMING_SNAKE_CASE					:			Dict    	=       node_to_insert






    def       _UpperCamelCase    (       self    ,							lowercase__    ,							lowercase__ )							-> None:
         SCREAMING_SNAKE_CASE					:			List[Any]    	=       node
         SCREAMING_SNAKE_CASE					:			List[Any]    	=       node.next

         if node.get_next() is None:
              SCREAMING_SNAKE_CASE					:			Any    	=       node_to_insert
         else:
              SCREAMING_SNAKE_CASE					:			List[str]    	=       node_to_insert

         SCREAMING_SNAKE_CASE					:			Tuple    	=       node_to_insert






    def       _UpperCamelCase    (       self    ,							lowercase__    ,							lowercase__ )							-> None:
         SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       1
         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       Node(lowercase__ )
         SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       self.head
         while node:
              if current_position == position:
                   self.insert_before_node(lowercase__    ,							lowercase__ )
                   return
              current_position += 1
              SCREAMING_SNAKE_CASE					:			Tuple    	=       node.next
         self.insert_after_node(self.tail    ,							lowercase__ )






    def       _UpperCamelCase    (       self    ,							lowercase__ )							-> Node:
         SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       self.head
         while node:
              if node.get_data() == item:
                   return node
              SCREAMING_SNAKE_CASE					:			int    	=       node.get_next()
         raise Exception('Node not found' )






    def       _UpperCamelCase    (       self    ,							lowercase__ )							-> Tuple:
         if (node := self.get_node(lowercase__ )) is not None:
              if node == self.head:
                   SCREAMING_SNAKE_CASE					:			int    	=       self.head.get_next()

              if node == self.tail:
                   SCREAMING_SNAKE_CASE					:			Optional[Any]    	=       self.tail.get_previous()

              self.remove_node_pointers(lowercase__ )






    @staticmethod
    def       _UpperCamelCase    (       lowercase__ )							-> None:
         if node.get_next():
              SCREAMING_SNAKE_CASE					:			List[str]    	=       node.previous

         if node.get_previous():
              SCREAMING_SNAKE_CASE					:			List[Any]    	=       node.next

         SCREAMING_SNAKE_CASE					:			Dict    	=       None
         SCREAMING_SNAKE_CASE					:			Tuple    	=       None






    def       _UpperCamelCase    (       self )							-> Any:
         return self.head is None






def     __lowerCAmelCase						(       )      ->	str:





     '''simple docstring'''









if __name__ == "__main__":
 import doctest

 doctest.testmod()




'''simple docstring'''





import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_torch


if is_torch_available():
 import torch

 from transformers.activations import gelu_new, gelu_python, get_activation






@require_torch
class 				UpperCAmelCase (       unittest.TestCase ):




    '''simple docstring'''







    def       _UpperCamelCase    (       self )							-> int:
         SCREAMING_SNAKE_CASE					:			str    	=       torch.tensor([-100, -1, -0.1, 0, 0.1, 1.0, 100] )
         SCREAMING_SNAKE_CASE					:			str    	=       get_activation('gelu' )
         self.assertTrue(torch.allclose(gelu_python(lowercase__ )    ,							torch_builtin(lowercase__ ) ) )
         self.assertFalse(torch.allclose(gelu_python(lowercase__ )    ,							gelu_new(lowercase__ ) ) )






    def       _UpperCamelCase    (       self )							-> Optional[Any]:
         SCREAMING_SNAKE_CASE					:			Union[str, Any]    	=       torch.tensor([-100, -1, -0.1, 0, 0.1, 1.0, 100] )
         SCREAMING_SNAKE_CASE					:			str    	=       get_activation('gelu' )
         SCREAMING_SNAKE_CASE					:			Dict    	=       get_activation('gelu_10' )

         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       torch_builtin(lowercase__ )
         SCREAMING_SNAKE_CASE					:			str    	=       geluaa(lowercase__ )

         SCREAMING_SNAKE_CASE					:			List[Any]    	=       torch.where(y_gelu_aa < 1_0.0    ,							1    ,							0 )

         self.assertTrue(torch.max(lowercase__ ).item() == 1_0.0 )
         self.assertTrue(torch.allclose(y_gelu * clipped_mask    ,							y_gelu_aa * clipped_mask ) )






    def       _UpperCamelCase    (       self )							-> Optional[Any]:
         get_activation('gelu' )
         get_activation('gelu_10' )
         get_activation('gelu_fast' )
         get_activation('gelu_new' )
         get_activation('gelu_python' )
         get_activation('gelu_pytorch_tanh' )
         get_activation('linear' )
         get_activation('mish' )
         get_activation('quick_gelu' )
         get_activation('relu' )
         get_activation('sigmoid' )
         get_activation('silu' )
         get_activation('swish' )
         get_activation('tanh' )
         with self.assertRaises(lowercase__ ):
              get_activation('bogus' )
         with self.assertRaises(lowercase__ ):
              get_activation(lowercase__ )






    def       _UpperCamelCase    (       self )							-> int:
         SCREAMING_SNAKE_CASE					:			Optional[int]    	=       get_activation('gelu' )
         SCREAMING_SNAKE_CASE					:			str    	=       1
         SCREAMING_SNAKE_CASE					:			List[str]    	=       get_activation('gelu' )
         self.assertEqual(acta.a    ,							1 )
         with self.assertRaises(lowercase__ ):
              SCREAMING_SNAKE_CASE					:			Dict    	=       acta.a



