






import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_sentencepiece, require_tokenizers, require_torch, slow, torch_device


if is_torch_available():
							from transformers import AutoModelForSeqaSeqLM, AutoTokenizer
@require_torch
@require_sentencepiece
@require_tokenizers
class  _UpperCAmelCase   (			unittest.TestCase      ):

				"""simple docstring"""




				@slow
				def 							lowercase__  (	self		:       Any    ):

								'''simple docstring'''
								lowercase__  					=     AutoModelForSeqaSeqLM.from_pretrained('''google/mt5-small''',    return_dict=lowerCamelCase    ).to(lowerCamelCase    )
								lowercase__  					=     AutoTokenizer.from_pretrained('''google/mt5-small'''    )

								lowercase__  					=     tokenizer('''Hello there''',    return_tensors='''pt'''    ).input_ids
								lowercase__  					=     tokenizer('''Hi I am''',    return_tensors='''pt'''    ).input_ids

								lowercase__  					=     model(input_ids.to(lowerCamelCase    ),    labels=labels.to(lowerCamelCase    )    ).loss
								lowercase__  					=     -(labels.shape[-1] * loss.item())

								lowercase__  					=     -84.9127
								self.assertTrue(abs(mtf_score - EXPECTED_SCORE    ) < 1E-4    )












from __future__ import annotations

from typing import Any






def     a     (		lowerCamelCase_							):






				'''simple docstring'''
				if not postfix_notation:
								return 0

				lowercase__  					=     {'''+''', '''-''', '''*''', '''/'''}
				lowercase__  					=     []

				for token in postfix_notation:
								if token in operations:
												lowercase__					,		lowercase__  					=     stack.pop(), stack.pop()
												if token == "+":
																stack.append(a + b							)
												elif token == "-":
																stack.append(a - b							)
												elif token == "*":
																stack.append(a * b							)
												else:
																if a * b < 0 and a % b != 0:
																				stack.append(a // b + 1							)
																else:
																				stack.append(a // b							)
								else:
												stack.append(int(lowerCamelCase_							)							)

				return stack.pop()


if __name__ == "__main__":
							import doctest

							doctest.testmod()




