






'''simple docstring'''




from typing import Any






class   _SCREAMING_SNAKE_CASE   :



 def __init__(   self		:   Tuple			,				a__		:   Any      ):
      __magic_name__						       =    data
      __magic_name__						       =    None



 def __repr__(   self		:   List[Any]      ):
      return F'''Node({self.data})'''






class   _SCREAMING_SNAKE_CASE   :



 def __init__(   self		:   Tuple      ):
      __magic_name__						       =    None



 def __iter__(   self		:   Optional[int]      ):
      __magic_name__						       =    self.head
      while node:
           yield node.data
           __magic_name__						       =    node.next



 def __len__(   self		:   Optional[int]      ):
      return sum(1 for _ in self      )



 def __repr__(   self		:   Union[str, Any]      ):
      return "->".join([str(__A      ) for item in self]      )



 def __getitem__(   self		:   List[Any]			,				a__		:   int      ):
      if not 0 <= index < len(self      ):
           raise ValueError('''list index out of range.'''      )
      for i, node in enumerate(self      ):
           if i == index:
                return node
      return None



 def __setitem__(   self		:   Dict			,				a__		:   int			,				a__		:   Any      ):
      if not 0 <= index < len(self      ):
           raise ValueError('''list index out of range.'''      )
      __magic_name__						       =    self.head
      for _ in range(__A      ):
           __magic_name__						       =    current.next
      __magic_name__						       =    data



 def 			snake_case__  (   self		:   int			,				a__		:   Any      ):
      self.insert_nth(len(self      )			,				__A      )



 def 			snake_case__  (   self		:   Dict			,				a__		:   Any      ):
      self.insert_nth(0			,				__A      )



 def 			snake_case__  (   self		:   Tuple			,				a__		:   int			,				a__		:   Any      ):
      if not 0 <= index <= len(self      ):
           raise IndexError('''list index out of range'''      )
      __magic_name__						       =    Node(__A      )
      if self.head is None:
           __magic_name__						       =    new_node
      elif index == 0:
           __magic_name__						       =    self.head  # link new_node to head
           __magic_name__						       =    new_node
      else:
           __magic_name__						       =    self.head
           for _ in range(index - 1      ):
                __magic_name__						       =    temp.next
           __magic_name__						       =    temp.next
           __magic_name__						       =    new_node



 def 			snake_case__  (   self		:   Union[str, Any]      ):  # print every node data
      print(self      )



 def 			snake_case__  (   self		:   Dict      ):
      return self.delete_nth(0      )



 def 			snake_case__  (   self		:   Dict      ):  # delete from tail
      return self.delete_nth(len(self      ) - 1      )



 def 			snake_case__  (   self		:   Optional[int]			,				a__		:   int = 0      ):
      if not 0 <= index <= len(self      ) - 1:  # test if index is valid
           raise IndexError('''List index out of range.'''      )
      __magic_name__						       =    self.head  # default first node
      if index == 0:
           __magic_name__						       =    self.head.next
      else:
           __magic_name__						       =    self.head
           for _ in range(index - 1      ):
                __magic_name__						       =    temp.next
           __magic_name__						       =    temp.next
           __magic_name__						       =    temp.next.next
      return delete_node.data



 def 			snake_case__  (   self		:   Tuple      ):
      return self.head is None



 def 			snake_case__  (   self		:   Union[str, Any]      ):
      __magic_name__						       =    None
      __magic_name__						       =    self.head

      while current:
           # Store the current node's next node.
           __magic_name__						       =    current.next
           # Make the current node's next point backwards
           __magic_name__						       =    prev
           # Make the previous node be the current node
           __magic_name__						       =    current
           # Make the current node the next node (to progress iteration)
           __magic_name__						       =    next_node
      # Return prev in order to put the head at the end
      __magic_name__						       =    prev




def 						UpperCamelCase	(			)				->     List[Any]:






     '''simple docstring'''
     __magic_name__						       =    LinkedList()
     assert linked_list.is_empty() is True
     assert str(_lowercase			) == ""

     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(_lowercase			) == i
          linked_list.insert_nth(_lowercase		,						i + 1			)
     assert str(_lowercase			) == "->".join(str(_lowercase			) for i in range(1		,						11			)			)

     linked_list.insert_head(0			)
     linked_list.insert_tail(11			)
     assert str(_lowercase			) == "->".join(str(_lowercase			) for i in range(0		,						12			)			)

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

     assert all(linked_list[i] == i + 1 for i in range(0		,						9			)			) is True

     for i in range(0		,						9			):
          __magic_name__						       =    -i
     assert all(linked_list[i] == -i for i in range(0		,						9			)			) is True

     linked_list.reverse()
     assert str(_lowercase			) == "->".join(str(_lowercase			) for i in range(-8		,						1			)			)




def 						UpperCamelCase	(			)				->     Dict:






     '''simple docstring'''
     __magic_name__						       =    [
         -9,
         100,
         Node(7734_5112			),
         '''dlrow olleH''',
         7,
         5555,
         0,
         -192.5_5555,
         '''Hello, world!''',
         77.9,
         Node(10			),
         None,
         None,
         12.20,
     ]
     __magic_name__						       =    LinkedList()

     for i in test_input:
          linked_list.insert_tail(_lowercase			)

     # Check if it's empty or not
     assert linked_list.is_empty() is False
     assert (
         str(_lowercase			) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
         "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
     )

     # Delete the head
     __magic_name__						       =    linked_list.delete_head()
     assert result == -9
     assert (
         str(_lowercase			) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
         "Hello, world!->77.9->Node(10)->None->None->12.2"
     )

     # Delete the tail
     __magic_name__						       =    linked_list.delete_tail()
     assert result == 12.2
     assert (
         str(_lowercase			) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
         "Hello, world!->77.9->Node(10)->None->None"
     )

     # Delete a node in specific location in linked list
     __magic_name__						       =    linked_list.delete_nth(10			)
     assert result is None
     assert (
         str(_lowercase			) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
         "Hello, world!->77.9->Node(10)->None"
     )

     # Add a Node instance to its head
     linked_list.insert_head(Node('''Hello again, world!'''			)			)
     assert (
         str(_lowercase			)
         == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
         "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
     )

     # Add None to its tail
     linked_list.insert_tail(_lowercase			)
     assert (
         str(_lowercase			)
         == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
         "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
     )

     # Reverse the linked list
     linked_list.reverse()
     assert (
         str(_lowercase			)
         == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
         "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
     )




def 						UpperCamelCase	(			)				->     int:






     '''simple docstring'''
     from doctest import testmod

     testmod()

     __magic_name__						       =    LinkedList()
     linked_list.insert_head(input('''Inserting 1st at head '''			).strip()			)
     linked_list.insert_head(input('''Inserting 2nd at head '''			).strip()			)
     print('''\nPrint list:'''			)
     linked_list.print_list()
     linked_list.insert_tail(input('''\nInserting 1st at tail '''			).strip()			)
     linked_list.insert_tail(input('''Inserting 2nd at tail '''			).strip()			)
     print('''\nPrint list:'''			)
     linked_list.print_list()
     print('''\nDelete head'''			)
     linked_list.delete_head()
     print('''Delete tail'''			)
     linked_list.delete_tail()
     print('''\nPrint list:'''			)
     linked_list.print_list()
     print('''\nReverse linked list'''			)
     linked_list.reverse()
     print('''\nPrint list:'''			)
     linked_list.print_list()
     print('''\nString representation of linked list:'''			)
     print(_lowercase			)
     print('''\nReading/changing Node data using indexing:'''			)
     print(F'''Element at Position 1: {linked_list[1]}'''			)
     __magic_name__						       =    input('''Enter New Value: '''			).strip()
     print('''New list:'''			)
     print(_lowercase			)
     print(F'''length of linked_list is : {len(_lowercase			)}'''			)


if __name__ == "__main__":
      main()









'''simple docstring'''




import unittest

from transformers import (
    MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
    TF_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
    TextaTextGenerationPipeline,
    pipeline,
)
from transformers.testing_utils import is_pipeline_test, require_tf, require_torch
from transformers.utils import is_torch_available

from .test_pipelines_common import ANY


if is_torch_available():
      import torch






@is_pipeline_test
class   _SCREAMING_SNAKE_CASE   (   unittest.TestCase     ):
 __SCREAMING_SNAKE_CASE					:List[Any]      	=					MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING
 __SCREAMING_SNAKE_CASE					:Any      	=					TF_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING



 def 			snake_case__  (   self		:   Tuple			,				a__		:   Tuple			,				a__		:   int			,				a__		:   int      ):
      __magic_name__						       =    TextaTextGenerationPipeline(model=a__			,				tokenizer=a__      )
      return generator, ["Something to write", "Something else"]



 def 			snake_case__  (   self		:   List[str]			,				a__		:   List[Any]			,				a__		:   List[str]      ):
      __magic_name__						       =    generator('''Something there'''      )
      self.assertEqual(a__			,				[{'''generated_text''': ANY(a__      )}]      )
      # These are encoder decoder, they don't just append to incoming string
      self.assertFalse(outputs[0]['''generated_text'''].startswith('''Something there'''      )      )

      __magic_name__						       =    generator(['''This is great !''', '''Something else''']			,				num_return_sequences=2			,				do_sample=a__      )
      self.assertEqual(
          a__			,				[
              [{'''generated_text''': ANY(a__      )}, {'''generated_text''': ANY(a__      )}],
              [{'''generated_text''': ANY(a__      )}, {'''generated_text''': ANY(a__      )}],
          ]			,				)

      __magic_name__						       =    generator(
          ['''This is great !''', '''Something else''']			,				num_return_sequences=2			,				batch_size=2			,				do_sample=a__      )
      self.assertEqual(
          a__			,				[
              [{'''generated_text''': ANY(a__      )}, {'''generated_text''': ANY(a__      )}],
              [{'''generated_text''': ANY(a__      )}, {'''generated_text''': ANY(a__      )}],
          ]			,				)

      with self.assertRaises(a__      ):
           generator(4      )



 @require_torch
 def 			snake_case__  (   self		:   Any      ):
      __magic_name__						       =    pipeline('''text2text-generation'''			,				model='''patrickvonplaten/t5-tiny-random'''			,				framework='''pt'''      )
      # do_sample=False necessary for reproducibility
      __magic_name__						       =    generator('''Something there'''			,				do_sample=a__      )
      self.assertEqual(a__			,				[{'''generated_text''': ''''''}]      )

      __magic_name__						       =    3
      __magic_name__						       =    generator(
          '''Something there'''			,				num_return_sequences=a__			,				num_beams=a__			,				)
      __magic_name__						       =    [
          {'''generated_text''': '''Beide Beide Beide Beide Beide Beide Beide Beide Beide'''},
          {'''generated_text''': '''Beide Beide Beide Beide Beide Beide Beide Beide'''},
          {'''generated_text''': ''''''},
      ]
      self.assertEqual(a__			,				a__      )

      __magic_name__						       =    generator('''This is a test'''			,				do_sample=a__			,				num_return_sequences=2			,				return_tensors=a__      )
      self.assertEqual(
          a__			,				[
              {'''generated_token_ids''': ANY(torch.Tensor      )},
              {'''generated_token_ids''': ANY(torch.Tensor      )},
          ]			,				)
      __magic_name__						       =    generator.model.config.eos_token_id
      __magic_name__						       =    '''<pad>'''
      __magic_name__						       =    generator(
          ['''This is a test''', '''This is a second test''']			,				do_sample=a__			,				num_return_sequences=2			,				batch_size=2			,				return_tensors=a__			,				)
      self.assertEqual(
          a__			,				[
              [
                  {'''generated_token_ids''': ANY(torch.Tensor      )},
                  {'''generated_token_ids''': ANY(torch.Tensor      )},
              ],
              [
                  {'''generated_token_ids''': ANY(torch.Tensor      )},
                  {'''generated_token_ids''': ANY(torch.Tensor      )},
              ],
          ]			,				)



 @require_tf
 def 			snake_case__  (   self		:   int      ):
      __magic_name__						       =    pipeline('''text2text-generation'''			,				model='''patrickvonplaten/t5-tiny-random'''			,				framework='''tf'''      )
      # do_sample=False necessary for reproducibility
      __magic_name__						       =    generator('''Something there'''			,				do_sample=a__      )
      self.assertEqual(a__			,				[{'''generated_text''': ''''''}]      )






