
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


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

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

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

@contextlib.contextmanager
def  __lowerCamelCase					( )       ->      Dict:
     print('Welcome!'			)
     yield
     print('Bye!'			)

@contextlib.contextmanager
def  __lowerCamelCase					( )       ->      List[str]:
     print('Bonjour!'			)
     yield
     print('Au revoir!'			)
class       _lowerCAmelCase  (		unittest.TestCase							):

 """simple docstring"""

 def      __lowerCAmelCase  (						self			:			str   ):






      """simple docstring"""



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




class       _lowerCAmelCase  (		unittest.TestCase							):

 """simple docstring"""

 @unittest.mock.patch('sys.stdout'					, new_callable=io.StringIO   )
 def      __lowerCAmelCase  (						self			:			Union[str, Any]					, SCREAMING_SNAKE_CASE__			:			Union[str, 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      __lowerCAmelCase  (						self			:			str					, SCREAMING_SNAKE_CASE__			:			Dict   ):






      """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      __lowerCAmelCase  (						self			:			Union[str, Any]					, SCREAMING_SNAKE_CASE__			:			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      __lowerCAmelCase  (						self			:			Optional[int]   ):






      """simple docstring"""



      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels']   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels', 'next_sentence_label']   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['start_positions', 'end_positions']   )
      class       _lowerCAmelCase  (		__magic_name__							):

       """simple docstring"""
       pass




      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels']   )

 @require_tf
 def      __lowerCAmelCase  (						self			:			List[str]   ):






      """simple docstring"""



      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels']   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels', 'next_sentence_label']   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['start_positions', 'end_positions']   )
      class       _lowerCAmelCase  (		__magic_name__							):

       """simple docstring"""
       pass




      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, ['labels']   )






 @require_flax
 def      __lowerCAmelCase  (						self			:			Tuple   ):






      """simple docstring"""



      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, []   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, []   )
      self.assertEqual(find_labels(SCREAMING_SNAKE_CASE__   )					, []   )
      class       _lowerCAmelCase  (		__magic_name__							):

       """simple docstring"""
       pass




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




from functools import lru_cache

@lru_cache
def  __lowerCamelCase					( _lowercase			)       ->      int:
     if num < 0:
          raise ValueError('Number should not be negative.'			)

     return 1 if num in (0, 1) else num * factorial(num - 1			)


if __name__ == "__main__":
 import doctest

 doctest.testmod()


