

def  UpperCAmelCase_   (_lowerCAmelCase :		list		):
			if not isinstance(_lowerCAmelCase     ,			_lowerCAmelCase		):
						raise ValueError("Input series is not valid, valid series - [1, 2/3, 2]"		)
			if len(_lowerCAmelCase		) == 0:
						raise ValueError("Input list must be a non empty list"		)
			if len(_lowerCAmelCase		) == 1 and series[0] != 0:
						return True
			__UpperCamelCase    :    Optional[Any]								=      []
			__UpperCamelCase    :    List[Any]								=      len(_lowerCAmelCase		)
			for i in range(0     ,			_lowerCAmelCase		):
						if series[i] == 0:
									raise ValueError("Input series cannot have 0 as an element"		)
						rec_series.append(1 / series[i]		)
			__UpperCamelCase    :    Tuple								=      rec_series[1] - rec_series[0]
			for index in range(2     ,			_lowerCAmelCase		):
						if rec_series[index] - rec_series[index - 1] != common_diff:
									return False
			return True







def  UpperCAmelCase_   (_lowerCAmelCase :		list		):
			if not isinstance(_lowerCAmelCase     ,			_lowerCAmelCase		):
						raise ValueError("Input series is not valid, valid series - [2, 4, 6]"		)
			if len(_lowerCAmelCase		) == 0:
						raise ValueError("Input list must be a non empty list"		)
			__UpperCamelCase    :    Union[str, Any]								=      0
			for val in series:
						answer += 1 / val
			return len(_lowerCAmelCase		) / answer


if __name__ == "__main__":
					import doctest

					doctest.testmod()


import os
import pickle
import tempfile
import unittest
from typing import Callable, Optional

import numpy as np

from transformers import (
    BatchEncoding,
    BertTokenizer,
    BertTokenizerFast,
    PreTrainedTokenizer,
    PreTrainedTokenizerFast,
    TensorType,
    TokenSpan,
    is_tokenizers_available,
)
from transformers.models.gpta.tokenization_gpta import GPTaTokenizer
from transformers.testing_utils import CaptureStderr, require_flax, require_tf, require_tokenizers, require_torch, slow


if is_tokenizers_available():
					from tokenizers import Tokenizer
					from tokenizers.models import WordPiece
class 		SCREAMING_SNAKE_CASE__					(		unittest.TestCase   ):







						"""simple docstring"""




						def __lowerCamelCase					(				self , __UpperCamelCase    )							->	Union[str, Any]:




									'''simple docstring'''


									__UpperCamelCase    :    List[str]								=      list(tokenizer_class.max_model_input_sizes.keys()    )
									for model_name in sa_models[:1]:
												__UpperCamelCase    :    int								=      tokenizer_class.from_pretrained(__UpperCamelCase    )
												self.assertIsNotNone(__UpperCamelCase    )
												self.assertIsInstance(__UpperCamelCase , __UpperCamelCase    )
												self.assertIsInstance(__UpperCamelCase , __UpperCamelCase    )

												for special_tok in tokenizer.all_special_tokens:
															self.assertIsInstance(__UpperCamelCase , __UpperCamelCase    )
															__UpperCamelCase    :    str								=      tokenizer.convert_tokens_to_ids(__UpperCamelCase    )
															self.assertIsInstance(__UpperCamelCase , __UpperCamelCase    )

						def __lowerCamelCase					(				self , __UpperCamelCase , __UpperCamelCase = None    )							->	Tuple:




									'''simple docstring'''


									__UpperCamelCase    :    Optional[Any]								=      pickle.dumps(__UpperCamelCase    )
									self.assertIsNotNone(__UpperCamelCase    )

									__UpperCamelCase    :    List[str]								=      pickle.loads(__UpperCamelCase    )

									# Ensure is_fast is correctly restored
									self.assertEqual(be_restored.is_fast , be_original.is_fast    )

									# Ensure encodings are potentially correctly restored
									if be_original.is_fast:
												self.assertIsNotNone(be_restored.encodings    )
									else:
												self.assertIsNone(be_restored.encodings    )

									# Ensure the keys are the same
									for original_v, restored_v in zip(be_original.values() , be_restored.values()    ):
												if equal_op:
															self.assertTrue(equal_op(__UpperCamelCase , __UpperCamelCase    )    )
												else:
															self.assertEqual(__UpperCamelCase , __UpperCamelCase    )

						@slow
						def __lowerCamelCase					(				self    )							->	List[Any]:




									'''simple docstring'''


									self.check_tokenizer_from_pretrained(__UpperCamelCase    )

						def __lowerCamelCase					(				self    )							->	Optional[int]:




									'''simple docstring'''


									self.assertEqual(TensorType("tf"    ) , TensorType.TENSORFLOW    )
									self.assertEqual(TensorType("pt"    ) , TensorType.PYTORCH    )
									self.assertEqual(TensorType("np"    ) , TensorType.NUMPY    )

						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	List[str]:




									'''simple docstring'''


									import numpy as np

									__UpperCamelCase    :    str								=      BertTokenizer.from_pretrained("bert-base-cased"    )
									__UpperCamelCase    :    Optional[Any]								=      BertTokenizerFast.from_pretrained("bert-base-cased"    )

									# Python no tensor
									with self.subTest("BatchEncoding (Python, return_tensors=None)"    ):
												self.assert_dump_and_restore(tokenizer_p("Small example to encode"    )    )

									with self.subTest("BatchEncoding (Python, return_tensors=NUMPY)"    ):
												self.assert_dump_and_restore(
												    tokenizer_p("Small example to encode" , return_tensors=TensorType.NUMPY    ) , np.array_equal    )

									with self.subTest("BatchEncoding (Rust, return_tensors=None)"    ):
												self.assert_dump_and_restore(tokenizer_r("Small example to encode"    )    )

									with self.subTest("BatchEncoding (Rust, return_tensors=NUMPY)"    ):
												self.assert_dump_and_restore(
												    tokenizer_r("Small example to encode" , return_tensors=TensorType.NUMPY    ) , np.array_equal    )

						@require_tf
						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	Union[str, Any]:




									'''simple docstring'''


									import tensorflow as tf

									def tf_array_equals(__UpperCamelCase , __UpperCamelCase    ):
												return tf.reduce_all(tf.equal(__UpperCamelCase , __UpperCamelCase    )    )

									__UpperCamelCase    :    int								=      BertTokenizer.from_pretrained("bert-base-cased"    )
									__UpperCamelCase    :    Dict								=      BertTokenizerFast.from_pretrained("bert-base-cased"    )

									with self.subTest("BatchEncoding (Python, return_tensors=TENSORFLOW)"    ):
												self.assert_dump_and_restore(
												    tokenizer_p("Small example to encode" , return_tensors=TensorType.TENSORFLOW    ) , __UpperCamelCase    )

									with self.subTest("BatchEncoding (Rust, return_tensors=TENSORFLOW)"    ):
												self.assert_dump_and_restore(
												    tokenizer_r("Small example to encode" , return_tensors=TensorType.TENSORFLOW    ) , __UpperCamelCase    )

						@require_torch
						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	Any:




									'''simple docstring'''


									import torch

									__UpperCamelCase    :    List[Any]								=      BertTokenizer.from_pretrained("bert-base-cased"    )
									__UpperCamelCase    :    Optional[Any]								=      BertTokenizerFast.from_pretrained("bert-base-cased"    )

									with self.subTest("BatchEncoding (Python, return_tensors=PYTORCH)"    ):
												self.assert_dump_and_restore(
												    tokenizer_p("Small example to encode" , return_tensors=TensorType.PYTORCH    ) , torch.equal    )

									with self.subTest("BatchEncoding (Rust, return_tensors=PYTORCH)"    ):
												self.assert_dump_and_restore(
												    tokenizer_r("Small example to encode" , return_tensors=TensorType.PYTORCH    ) , torch.equal    )

						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	Any:




									'''simple docstring'''


									__UpperCamelCase    :    Optional[int]								=      BertTokenizer.from_pretrained("bert-base-cased"    )
									__UpperCamelCase    :    Tuple								=      BertTokenizerFast.from_pretrained("bert-base-cased"    )

									with self.subTest("Python Tokenizer"    ):
												self.assertFalse(tokenizer_p("Small example to_encode"    ).is_fast    )

									with self.subTest("Rust Tokenizer"    ):
												self.assertTrue(tokenizer_r("Small example to_encode"    ).is_fast    )

						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	Union[str, Any]:




									'''simple docstring'''


									__UpperCamelCase    :    Any								=      BertTokenizerFast.from_pretrained("bert-base-cased"    )
									__UpperCamelCase    :    Dict								=      tokenizer_r(["Test", "\xad", "test"] , is_split_into_words=__UpperCamelCase    )

									self.assertEqual(encoded.word_to_tokens(0    ) , TokenSpan(start=1 , end=2    )    )
									self.assertEqual(encoded.word_to_tokens(1    ) , __UpperCamelCase    )
									self.assertEqual(encoded.word_to_tokens(2    ) , TokenSpan(start=2 , end=3    )    )

						def __lowerCamelCase					(				self    )							->	Optional[int]:




									'''simple docstring'''


									__UpperCamelCase    :    str								=      BatchEncoding({"inputs": [[1, 2, 3], [4, 5, 6]], "labels": [0, 1]}    )
									__UpperCamelCase    :    List[str]								=      batch.convert_to_tensors(tensor_type="np"    )
									self.assertEqual(tensor_batch["inputs"].shape , (2, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (2,)    )
									# test converting the converted
									with CaptureStderr() as cs:
												__UpperCamelCase    :    Optional[Any]								=      batch.convert_to_tensors(tensor_type="np"    )
									self.assertFalse(len(cs.err    ) , msg=f'''should have no warning, but got {cs.err}'''    )

									__UpperCamelCase    :    Union[str, Any]								=      BatchEncoding({"inputs": [1, 2, 3], "labels": 0}    )
									__UpperCamelCase    :    int								=      batch.convert_to_tensors(tensor_type="np" , prepend_batch_axis=__UpperCamelCase    )
									self.assertEqual(tensor_batch["inputs"].shape , (1, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (1,)    )

						@require_torch
						def __lowerCamelCase					(				self    )							->	List[str]:




									'''simple docstring'''


									__UpperCamelCase    :    Dict								=      BatchEncoding({"inputs": [[1, 2, 3], [4, 5, 6]], "labels": [0, 1]}    )
									__UpperCamelCase    :    List[Any]								=      batch.convert_to_tensors(tensor_type="pt"    )
									self.assertEqual(tensor_batch["inputs"].shape , (2, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (2,)    )
									# test converting the converted
									with CaptureStderr() as cs:
												__UpperCamelCase    :    Tuple								=      batch.convert_to_tensors(tensor_type="pt"    )
									self.assertFalse(len(cs.err    ) , msg=f'''should have no warning, but got {cs.err}'''    )

									__UpperCamelCase    :    Union[str, Any]								=      BatchEncoding({"inputs": [1, 2, 3], "labels": 0}    )
									__UpperCamelCase    :    List[Any]								=      batch.convert_to_tensors(tensor_type="pt" , prepend_batch_axis=__UpperCamelCase    )
									self.assertEqual(tensor_batch["inputs"].shape , (1, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (1,)    )

						@require_tf
						def __lowerCamelCase					(				self    )							->	Optional[Any]:




									'''simple docstring'''


									__UpperCamelCase    :    List[Any]								=      BatchEncoding({"inputs": [[1, 2, 3], [4, 5, 6]], "labels": [0, 1]}    )
									__UpperCamelCase    :    Tuple								=      batch.convert_to_tensors(tensor_type="tf"    )
									self.assertEqual(tensor_batch["inputs"].shape , (2, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (2,)    )
									# test converting the converted
									with CaptureStderr() as cs:
												__UpperCamelCase    :    Optional[int]								=      batch.convert_to_tensors(tensor_type="tf"    )
									self.assertFalse(len(cs.err    ) , msg=f'''should have no warning, but got {cs.err}'''    )

									__UpperCamelCase    :    str								=      BatchEncoding({"inputs": [1, 2, 3], "labels": 0}    )
									__UpperCamelCase    :    Union[str, Any]								=      batch.convert_to_tensors(tensor_type="tf" , prepend_batch_axis=__UpperCamelCase    )
									self.assertEqual(tensor_batch["inputs"].shape , (1, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (1,)    )

						@require_flax
						def __lowerCamelCase					(				self    )							->	List[Any]:




									'''simple docstring'''


									__UpperCamelCase    :    str								=      BatchEncoding({"inputs": [[1, 2, 3], [4, 5, 6]], "labels": [0, 1]}    )
									__UpperCamelCase    :    int								=      batch.convert_to_tensors(tensor_type="jax"    )
									self.assertEqual(tensor_batch["inputs"].shape , (2, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (2,)    )
									# test converting the converted
									with CaptureStderr() as cs:
												__UpperCamelCase    :    Dict								=      batch.convert_to_tensors(tensor_type="jax"    )
									self.assertFalse(len(cs.err    ) , msg=f'''should have no warning, but got {cs.err}'''    )

									__UpperCamelCase    :    Tuple								=      BatchEncoding({"inputs": [1, 2, 3], "labels": 0}    )
									__UpperCamelCase    :    Union[str, Any]								=      batch.convert_to_tensors(tensor_type="jax" , prepend_batch_axis=__UpperCamelCase    )
									self.assertEqual(tensor_batch["inputs"].shape , (1, 3)    )
									self.assertEqual(tensor_batch["labels"].shape , (1,)    )

						def __lowerCamelCase					(				self    )							->	int:




									'''simple docstring'''


									__UpperCamelCase    :    str								=      [{"input_ids": np.array([0, 1, 2]    )}, {"input_ids": np.array([0, 1, 2, 3]    )}]
									__UpperCamelCase    :    Any								=      BertTokenizer.from_pretrained("bert-base-cased"    )

									__UpperCamelCase    :    Optional[Any]								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase    )
									self.assertTrue(isinstance(batch["input_ids"] , np.ndarray    )    )
									self.assertEqual(batch["input_ids"].tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )
									__UpperCamelCase    :    Optional[Any]								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase , return_tensors="np"    )
									self.assertTrue(isinstance(batch["input_ids"] , np.ndarray    )    )
									self.assertEqual(batch["input_ids"].tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )

						@require_torch
						def __lowerCamelCase					(				self    )							->	Optional[int]:




									'''simple docstring'''


									import torch

									__UpperCamelCase    :    List[str]								=      [{"input_ids": torch.tensor([0, 1, 2]    )}, {"input_ids": torch.tensor([0, 1, 2, 3]    )}]
									__UpperCamelCase    :    str								=      BertTokenizer.from_pretrained("bert-base-cased"    )

									__UpperCamelCase    :    str								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase    )
									self.assertTrue(isinstance(batch["input_ids"] , torch.Tensor    )    )
									self.assertEqual(batch["input_ids"].tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )
									__UpperCamelCase    :    int								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase , return_tensors="pt"    )
									self.assertTrue(isinstance(batch["input_ids"] , torch.Tensor    )    )
									self.assertEqual(batch["input_ids"].tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )

						@require_tf
						def __lowerCamelCase					(				self    )							->	List[Any]:




									'''simple docstring'''


									import tensorflow as tf

									__UpperCamelCase    :    List[Any]								=      [{"input_ids": tf.constant([0, 1, 2]    )}, {"input_ids": tf.constant([0, 1, 2, 3]    )}]
									__UpperCamelCase    :    int								=      BertTokenizer.from_pretrained("bert-base-cased"    )

									__UpperCamelCase    :    Optional[Any]								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase    )
									self.assertTrue(isinstance(batch["input_ids"] , tf.Tensor    )    )
									self.assertEqual(batch["input_ids"].numpy().tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )
									__UpperCamelCase    :    List[str]								=      tokenizer.pad(__UpperCamelCase , padding=__UpperCamelCase , return_tensors="tf"    )
									self.assertTrue(isinstance(batch["input_ids"] , tf.Tensor    )    )
									self.assertEqual(batch["input_ids"].numpy().tolist() , [[0, 1, 2, tokenizer.pad_token_id], [0, 1, 2, 3]]    )

						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	int:




									'''simple docstring'''


									__UpperCamelCase    :    List[Any]								=      Tokenizer(WordPiece(unk_token="[UNK]"    )    )
									PreTrainedTokenizerFast(tokenizer_object=__UpperCamelCase    )




						@require_tokenizers
						def __lowerCamelCase					(				self    )							->	Optional[int]:




									'''simple docstring'''


									__UpperCamelCase    :    Union[str, Any]								=      Tokenizer(WordPiece(unk_token="[UNK]"    )    )
									with tempfile.TemporaryDirectory() as tmpdirname:
												bert_tokenizer.save(os.path.join(__UpperCamelCase , "tokenizer.json"    )    )
												PreTrainedTokenizerFast(tokenizer_file=os.path.join(__UpperCamelCase , "tokenizer.json"    )    )