





'''simple docstring'''


import unittest

from transformers import is_flax_available
from transformers.testing_utils import require_flax, require_sentencepiece, require_tokenizers, require_torch, slow


if is_flax_available():
 import optax
 from flax.training.common_utils import onehot

 from transformers import AutoTokenizer, FlaxMTaForConditionalGeneration
 from transformers.models.ta.modeling_flax_ta import shift_tokens_right
@require_torch
@require_sentencepiece
@require_tokenizers
@require_flax
class 				a_       (				unittest.TestCase							):





     @slow
     def 							lowercase__				(			self		: Optional[int]						):





        """simple docstring"""




        lowercase_      :Optional[int]         =			FlaxMTaForConditionalGeneration.from_pretrained("google/mt5-small"						)
        lowercase_      :int         =			AutoTokenizer.from_pretrained("google/mt5-small"						)

        lowercase_      :str         =			tokenizer("Hello there"     ,				return_tensors="np"						).input_ids
        lowercase_      :Optional[int]         =			tokenizer("Hi I am"     ,				return_tensors="np"						).input_ids

        lowercase_      :Optional[Any]         =			shift_tokens_right(lowercase     ,				model.config.pad_token_id     ,				model.config.decoder_start_token_id						)

        lowercase_      :Union[str, Any]         =			model(lowercase     ,				decoder_input_ids=lowercase						).logits
        lowercase_      :Dict         =			optax.softmax_cross_entropy(lowercase     ,				onehot(lowercase     ,				logits.shape[-1]						)						).mean()

        lowercase_      :List[str]         =			-(labels.shape[-1] * loss.item())

        lowercase_      :List[str]         =			-84.91_27
        self.assertTrue(abs(mtf_score - EXPECTED_SCORE						) < 1e-4						)









'''simple docstring'''


def 							UpperCAmelCase_  (						__lowerCamelCase : dict			):
   lowercase_      :set[int]         =			set()
   # To detect a back edge, keep track of vertices currently in the recursion stack
   lowercase_      :set[int]         =			set()
   return any(
       node not in visited and depth_first_search(__lowerCamelCase     ,__lowerCamelCase     ,__lowerCamelCase     ,__lowerCamelCase			)
       for node in graph			)
def 							UpperCAmelCase_  (						__lowerCamelCase : dict     ,__lowerCamelCase : int     ,__lowerCamelCase : set     ,__lowerCamelCase : set			):
   visited.add(__lowerCamelCase			)
   rec_stk.add(__lowerCamelCase			)

   for node in graph[vertex]:
      if node not in visited:
         if depth_first_search(__lowerCamelCase     ,__lowerCamelCase     ,__lowerCamelCase     ,__lowerCamelCase			):
            return True
      elif node in rec_stk:
         return True

    # The node needs to be removed from recursion stack before function ends
   rec_stk.remove(__lowerCamelCase			)
   return False


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

 testmod()


