


"""simple docstring"""


import contextlib
import importlib
import io
import unittest

import transformers

# Try to import everything from transformers to ensure every object can be loaded.
from transformers import *  # noqa F406
from transformers.testing_utils import DUMMY_UNKNOWN_IDENTIFIER, require_flax, require_tf, require_torch
from transformers.utils import ContextManagers, find_labels, is_flax_available, is_tf_available, is_torch_available


if is_torch_available():
     from transformers import BertForPreTraining, BertForQuestionAnswering, BertForSequenceClassification

if is_tf_available():
     from transformers import TFBertForPreTraining, TFBertForQuestionAnswering, TFBertForSequenceClassification

if is_flax_available():
     from transformers import FlaxBertForPreTraining, FlaxBertForQuestionAnswering, FlaxBertForSequenceClassification


A_      =    DUMMY_UNKNOWN_IDENTIFIER
# An actual model hosted on huggingface.co

A_      =    '''main'''
# Default branch name
A_      =    '''f2c752cfc5c0ab6f4bdec59acea69eefbee381c2'''
# One particular commit (not the top of `main`)
A_      =    '''aaaaaaa'''
# This commit does not exist, so we should 404.

A_      =    '''d9e9f15bc825e4b2c9249e9578f884bbcb5e3684'''
# Sha-1 of config.json on the top of `main`, for checking purposes
A_      =    '''4b243c475af8d0a7754e87d7d096c92e5199ec2fe168a2ee7998e3b8e9bcb1d3'''


@contextlib.contextmanager
def  UpperCAmelCase__	():
  """simple docstring"""

  print("""Welcome!"""   )
  yield
  print("""Bye!"""   )


@contextlib.contextmanager
def  UpperCAmelCase__	():
  """simple docstring"""

  print("""Bonjour!"""   )
  yield
  print("""Au revoir!"""   )






class  lowercase(					unittest.TestCase			):







 '''simple docstring'''





 def 			UpperCamelCase_       (    self:		Tuple		):




   '''simple docstring'''



   assert transformers.__spec__ is not None
   assert importlib.util.find_spec("""transformers"""		) is not None







class  lowercase(					unittest.TestCase			):







 '''simple docstring'''





 @unittest.mock.patch("""sys.stdout""",				new_callable=io.StringIO		)
 def 			UpperCamelCase_       (    self:		Any,				a_:		Optional[Any]		):




   '''simple docstring'''



   with ContextManagers([]		):
     print("""Transformers are awesome!"""		)
   # The print statement adds a new line at the end of the output
   self.assertEqual(mock_stdout.getvalue(),				"""Transformers are awesome!\n"""		)


 @unittest.mock.patch("""sys.stdout""",				new_callable=io.StringIO		)
 def 			UpperCamelCase_       (    self:		Dict,				a_:		Optional[Any]		):




   '''simple docstring'''



   with ContextManagers([context_en()]		):
     print("""Transformers are awesome!"""		)
   # The output should be wrapped with an English welcome and goodbye
   self.assertEqual(mock_stdout.getvalue(),				"""Welcome!\nTransformers are awesome!\nBye!\n"""		)


 @unittest.mock.patch("""sys.stdout""",				new_callable=io.StringIO		)
 def 			UpperCamelCase_       (    self:		List[str],				a_:		Optional[Any]		):




   '''simple docstring'''



   with ContextManagers([context_fr(), context_en()]		):
     print("""Transformers are awesome!"""		)
   # The output should be wrapped with an English and French welcome and goodbye
   self.assertEqual(mock_stdout.getvalue(),				"""Bonjour!\nWelcome!\nTransformers are awesome!\nBye!\nAu revoir!\n"""		)


 @require_torch
 def 			UpperCamelCase_       (    self:		Dict		):




   '''simple docstring'''



   self.assertEqual(find_labels(a_		),				["""labels"""]		)
   self.assertEqual(find_labels(a_		),				["""labels""", """next_sentence_label"""]		)
   self.assertEqual(find_labels(a_		),				["""start_positions""", """end_positions"""]		)






   class  lowercase(					__a			):







    '''simple docstring'''





    pass







   self.assertEqual(find_labels(a_		),				["""labels"""]		)


 @require_tf
 def 			UpperCamelCase_       (    self:		Union[str, Any]		):




   '''simple docstring'''



   self.assertEqual(find_labels(a_		),				["""labels"""]		)
   self.assertEqual(find_labels(a_		),				["""labels""", """next_sentence_label"""]		)
   self.assertEqual(find_labels(a_		),				["""start_positions""", """end_positions"""]		)






   class  lowercase(					__a			):







    '''simple docstring'''





    pass







   self.assertEqual(find_labels(a_		),				["""labels"""]		)


 @require_flax
 def 			UpperCamelCase_       (    self:		List[Any]		):




   '''simple docstring'''



   self.assertEqual(find_labels(a_		),				[]		)
   self.assertEqual(find_labels(a_		),				[]		)
   self.assertEqual(find_labels(a_		),				[]		)






   class  lowercase(					__a			):







    '''simple docstring'''





    pass







   self.assertEqual(find_labels(a_		),				[]		)








"""simple docstring"""


from typing import Any






class  lowercase:







 '''simple docstring'''





 def __init__(    self:		Dict,				a_:		Any		):




   '''simple docstring'''



   _snake_case							:		Dict								=  data
   _snake_case							:		Optional[Any]								=  None







class  lowercase:







 '''simple docstring'''





 def __init__(    self:		str		):




   '''simple docstring'''



   _snake_case							:		Any								=  None


 def 			UpperCamelCase_       (    self:		Any		):




   '''simple docstring'''



   _snake_case							:		List[Any]								=  self.head
   while temp is not None:
     print(temp.data,				end=""" """		)
     _snake_case							:		int								=  temp.next
   print()


 def 			UpperCamelCase_       (    self:		Union[str, Any],				a_:		Any		):




   '''simple docstring'''



   _snake_case							:		Optional[Any]								=  Node(a_		)
   _snake_case							:		Union[str, Any]								=  self.head
   _snake_case							:		List[Any]								=  new_node


 def 			UpperCamelCase_       (    self:		Tuple,				a_:		List[str],				a_:		Union[str, Any]		):




   '''simple docstring'''



   if node_data_a == node_data_a:
     return
   else:
     _snake_case							:		int								=  self.head
     while node_a is not None and node_a.data != node_data_a:
       _snake_case							:		List[Any]								=  node_a.next

     _snake_case							:		List[Any]								=  self.head
     while node_a is not None and node_a.data != node_data_a:
       _snake_case							:		List[Any]								=  node_a.next

     if node_a is None or node_a is None:
       return

     _snake_case		, _snake_case							:		int								=  node_a.data, node_a.data


if __name__ == "__main__":
     A_      =    LinkedList()
     for i in range(5, 0, -1):
          ll.push(i)

     ll.print_list()

     ll.swap_nodes(1, 4)
     print('''After swapping''')
     ll.print_list()


