




class     snake_case  :


   '''simple docstring'''







   def __init__(					self     :	Any						,    lowerCamelCase_     :	Optional[int]			)					->Optional[int]:
     '''simple docstring'''







     UpperCAmelCase__    						=   data
     UpperCAmelCase__    						=   None
     UpperCAmelCase__    						=   None







   def __str__(					self     :	List[str]			)					->Optional[int]:
     '''simple docstring'''







     return f'''{self.data}'''





class     snake_case  :


   '''simple docstring'''







   def __init__(					self     :	Any			)					->Optional[Any]:
     '''simple docstring'''







     UpperCAmelCase__    						=   None
     UpperCAmelCase__    						=   None




   def __iter__(					self     :	int			)					->Optional[Any]:
     '''simple docstring'''







     UpperCAmelCase__    						=   self.head
     while node:
       yield node.data
       UpperCAmelCase__    						=   node.next




   def __str__(					self     :	List[str]			)					->Optional[int]:
     '''simple docstring'''







     return "->".join([str(lowerCamelCase_			) for item in self]			)




   def __len__(					self     :	int			)					->List[str]:
     '''simple docstring'''







     return sum(1 for _ in self			)




   def 	UpperCAmelCase       (					self     :	Optional[Any]						,    lowerCamelCase_     :	Any			)					->Optional[Any]:
     '''simple docstring'''







     self.insert_at_nth(0						,    lowerCamelCase_			)




   def 	UpperCAmelCase       (					self     :	Optional[Any]						,    lowerCamelCase_     :	str			)					->Union[str, Any]:
     '''simple docstring'''







     self.insert_at_nth(len(self			)						,    lowerCamelCase_			)




   def 	UpperCAmelCase       (					self     :	str						,    lowerCamelCase_     :	int						,    lowerCamelCase_     :	List[str]			)					->Optional[Any]:
     '''simple docstring'''







     UpperCAmelCase__    						=   len(self			)

     if not 0 <= index <= length:
       raise IndexError("""list index out of range"""			)
     UpperCAmelCase__    						=   Node(lowerCamelCase_			)
     if self.head is None:
       UpperCAmelCase__    						=   UpperCAmelCase__    						=   new_node
     elif index == 0:
       UpperCAmelCase__    						=   new_node
       UpperCAmelCase__    						=   self.head
       UpperCAmelCase__    						=   new_node
     elif index == length:
       UpperCAmelCase__    						=   new_node
       UpperCAmelCase__    						=   self.tail
       UpperCAmelCase__    						=   new_node
     else:
       UpperCAmelCase__    						=   self.head
       for _ in range(0						,    lowerCamelCase_			):
         UpperCAmelCase__    						=   temp.next
       UpperCAmelCase__    						=   new_node
       UpperCAmelCase__    						=   temp.previous
       UpperCAmelCase__    						=   temp
       UpperCAmelCase__    						=   new_node




   def 	UpperCAmelCase       (					self     :	Optional[Any]			)					->Any:
     '''simple docstring'''







     return self.delete_at_nth(0			)




   def 	UpperCAmelCase       (					self     :	Tuple			)					->List[Any]:
     '''simple docstring'''







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




   def 	UpperCAmelCase       (					self     :	Any						,    lowerCamelCase_     :	int			)					->Tuple:
     '''simple docstring'''







     UpperCAmelCase__    						=   len(self			)

     if not 0 <= index <= length - 1:
       raise IndexError("""list index out of range"""			)
     UpperCAmelCase__    						=   self.head  # default first node
     if length == 1:
       UpperCAmelCase__    						=   UpperCAmelCase__    						=   None
     elif index == 0:
       UpperCAmelCase__    						=   self.head.next
       UpperCAmelCase__    						=   None
     elif index == length - 1:
       UpperCAmelCase__    						=   self.tail
       UpperCAmelCase__    						=   self.tail.previous
       UpperCAmelCase__    						=   None
     else:
       UpperCAmelCase__    						=   self.head
       for _ in range(0						,    lowerCamelCase_			):
         UpperCAmelCase__    						=   temp.next
       UpperCAmelCase__    						=   temp
       UpperCAmelCase__    						=   temp.previous
       UpperCAmelCase__    						=   temp.next
     return delete_node.data




   def 	UpperCAmelCase       (					self     :	int						,    lowerCamelCase_     :	Dict			)					->str:
     '''simple docstring'''







     UpperCAmelCase__    						=   self.head

     while current.data != data:  # Find the position to delete
       if current.next:
         UpperCAmelCase__    						=   current.next
       else:  # We have reached the end an no value matches
         raise ValueError("""No data matching given value"""			)

     if current == self.head:
       self.delete_head()

     elif current == self.tail:
       self.delete_tail()

     else:  # Before: 1 <--> 2(current) <--> 3
       UpperCAmelCase__    						=   current.next  # 1 --> 3
       UpperCAmelCase__    						=   current.previous  # 1 <--> 3
     return data







   def 	UpperCAmelCase       (					self     :	str			)					->Optional[Any]:
     '''simple docstring'''







     return len(self			) == 0



def 						lowercase		(     ):
  UpperCAmelCase__    						=   DoublyLinkedList()
  assert linked_list.is_empty() is True
  assert str(_lowerCAmelCase      ) == ""

  try:
    linked_list.delete_head()
    raise AssertionError  # This should not happen.
  except IndexError:
    assert True  # This should happen.

  try:
    linked_list.delete_tail()
    raise AssertionError  # This should not happen.
  except IndexError:
    assert True  # This should happen.

  for i in range(10      ):
    assert len(_lowerCAmelCase      ) == i
    linked_list.insert_at_nth(_lowerCAmelCase   ,     i + 1      )
  assert str(_lowerCAmelCase      ) == "->".join(str(_lowerCAmelCase      ) for i in range(1   ,     11      )      )

  linked_list.insert_at_head(0      )
  linked_list.insert_at_tail(11      )
  assert str(_lowerCAmelCase      ) == "->".join(str(_lowerCAmelCase      ) for i in range(0   ,     12      )      )

  assert linked_list.delete_head() == 0
  assert linked_list.delete_at_nth(9      ) == 10
  assert linked_list.delete_tail() == 11
  assert len(_lowerCAmelCase      ) == 9
  assert str(_lowerCAmelCase      ) == "->".join(str(_lowerCAmelCase      ) for i in range(1   ,     10      )      )


if __name__ == "__main__":
   from doctest import testmod

   testmod()










import unittest

import numpy as np

from transformers import is_tf_available
from transformers.testing_utils import require_tf


if is_tf_available():
   import tensorflow as tf

   from transformers.activations_tf import get_tf_activation





@require_tf
class     snake_case  (	unittest.TestCase							):


   '''simple docstring'''







   def 	UpperCAmelCase       (					self     :	Tuple			)					->Union[str, Any]:
     '''simple docstring'''







     UpperCAmelCase__    						=   tf.constant([-100, -1.0, -0.1, 0, 0.1, 1.0, 100.0]			)
     UpperCAmelCase__    						=   get_tf_activation("""gelu"""			)
     UpperCAmelCase__    						=   get_tf_activation("""gelu_10"""			)

     UpperCAmelCase__    						=   gelu(lowerCamelCase_			)
     UpperCAmelCase__    						=   geluaa(lowerCamelCase_			)

     UpperCAmelCase__    						=   tf.where(y_gelu_aa < 10.0						,    1.0						,    0.0			)

     self.assertEqual(tf.math.reduce_max(lowerCamelCase_			).numpy().item()						,    10.0			)
     self.assertTrue(np.allclose(y_gelu * clipped_mask						,    y_gelu_aa * clipped_mask			)			)







   def 	UpperCAmelCase       (					self     :	List[Any]			)					->Any:
     '''simple docstring'''







     get_tf_activation("""gelu"""			)
     get_tf_activation("""gelu_10"""			)
     get_tf_activation("""gelu_fast"""			)
     get_tf_activation("""gelu_new"""			)
     get_tf_activation("""glu"""			)
     get_tf_activation("""mish"""			)
     get_tf_activation("""quick_gelu"""			)
     get_tf_activation("""relu"""			)
     get_tf_activation("""sigmoid"""			)
     get_tf_activation("""silu"""			)
     get_tf_activation("""swish"""			)
     get_tf_activation("""tanh"""			)
     with self.assertRaises(lowerCamelCase_			):
       get_tf_activation("""bogus"""			)
     with self.assertRaises(lowerCamelCase_			):
       get_tf_activation(lowerCamelCase_			)




