




'''simple docstring'''

import json
import os
import pickle
import shutil
import tempfile
from unittest import TestCase
from unittest.mock import patch

import numpy as np
from datasets import Dataset

from transformers import is_faiss_available
from transformers.models.bart.configuration_bart import BartConfig
from transformers.models.bart.tokenization_bart import BartTokenizer
from transformers.models.bert.tokenization_bert import VOCAB_FILES_NAMES as DPR_VOCAB_FILES_NAMES
from transformers.models.dpr.configuration_dpr import DPRConfig
from transformers.models.dpr.tokenization_dpr import DPRContextEncoderTokenizer, DPRQuestionEncoderTokenizer
from transformers.models.rag.configuration_rag import RagConfig
from transformers.models.rag.retrieval_rag import CustomHFIndex, RagRetriever
from transformers.models.roberta.tokenization_roberta import VOCAB_FILES_NAMES as BART_VOCAB_FILES_NAMES
from transformers.testing_utils import require_faiss, require_sentencepiece, require_tokenizers, require_torch


if is_faiss_available():
							import faiss






@require_faiss
class 						a				(   _lowerCamelCase     ):


				def   A_ (		self    :					str					):
									snake_case_									=				tempfile.mkdtemp()
									snake_case_									=				8

									# DPR tok
									snake_case_									=				[
									    '''[UNK]''',
									    '''[CLS]''',
									    '''[SEP]''',
									    '''[PAD]''',
									    '''[MASK]''',
									    '''want''',
									    '''##want''',
									    '''##ed''',
									    '''wa''',
									    '''un''',
									    '''runn''',
									    '''##ing''',
									    ''',''',
									    '''low''',
									    '''lowest''',
									]
									snake_case_									=				os.path.join(self.tmpdirname       ,				'''dpr_tokenizer'''					)
									os.makedirs(lowercase_       ,				exist_ok=lowercase_					)
									snake_case_									=				os.path.join(lowercase_       ,				DPR_VOCAB_FILES_NAMES['''vocab_file''']					)
									with open(self.vocab_file       ,				'''w'''       ,				encoding='''utf-8'''					) as vocab_writer:
														vocab_writer.write(''''''.join([x + '''\n''' for x in vocab_tokens]					)					)

									# BART tok
									snake_case_									=				[
									    '''l''',
									    '''o''',
									    '''w''',
									    '''e''',
									    '''r''',
									    '''s''',
									    '''t''',
									    '''i''',
									    '''d''',
									    '''n''',
									    '''\u0120''',
									    '''\u0120l''',
									    '''\u0120n''',
									    '''\u0120lo''',
									    '''\u0120low''',
									    '''er''',
									    '''\u0120lowest''',
									    '''\u0120newer''',
									    '''\u0120wider''',
									    '''<unk>''',
									]
									snake_case_									=				dict(zip(lowercase_       ,				range(len(lowercase_					)					)					)					)
									snake_case_									=				['''#version: 0.2''', '''\u0120 l''', '''\u0120l o''', '''\u0120lo w''', '''e r''', '''''']
									snake_case_									=				{'''unk_token''': '''<unk>'''}

									snake_case_									=				os.path.join(self.tmpdirname       ,				'''bart_tokenizer'''					)
									os.makedirs(lowercase_       ,				exist_ok=lowercase_					)
									snake_case_									=				os.path.join(lowercase_       ,				BART_VOCAB_FILES_NAMES['''vocab_file''']					)
									snake_case_									=				os.path.join(lowercase_       ,				BART_VOCAB_FILES_NAMES['''merges_file''']					)
									with open(self.vocab_file       ,				'''w'''       ,				encoding='''utf-8'''					) as fp:
														fp.write(json.dumps(lowercase_					) + '''\n'''					)
									with open(self.merges_file       ,				'''w'''       ,				encoding='''utf-8'''					) as fp:
														fp.write('''\n'''.join(lowercase_					)					)


				def   A_ (		self    :					Union[str, Any]					):
									return DPRQuestionEncoderTokenizer.from_pretrained(os.path.join(self.tmpdirname       ,				'''dpr_tokenizer'''					)					)


				def   A_ (		self    :					Union[str, Any]					):
									return DPRContextEncoderTokenizer.from_pretrained(os.path.join(self.tmpdirname       ,				'''dpr_tokenizer'''					)					)


				def   A_ (		self    :					int					):
									return BartTokenizer.from_pretrained(os.path.join(self.tmpdirname       ,				'''bart_tokenizer'''					)					)


				def   A_ (		self    :					str					):
									shutil.rmtree(self.tmpdirname					)


				def   A_ (		self    :					str					):
									snake_case_									=				Dataset.from_dict(
									    {
									        '''id''': ['''0''', '''1'''],
									        '''text''': ['''foo''', '''bar'''],
									        '''title''': ['''Foo''', '''Bar'''],
									        '''embeddings''': [np.ones(self.retrieval_vector_size					), 2 * np.ones(self.retrieval_vector_size					)],
									    }					)
									dataset.add_faiss_index('''embeddings'''       ,				string_factory='''Flat'''       ,				metric_type=faiss.METRIC_INNER_PRODUCT					)
									return dataset


				def   A_ (		self    :					str					):
									snake_case_									=				self.get_dummy_dataset()
									snake_case_									=				RagConfig(
									    retrieval_vector_size=self.retrieval_vector_size       ,				question_encoder=DPRConfig().to_dict()       ,				generator=BartConfig().to_dict()       ,				)
									with patch('''transformers.models.rag.retrieval_rag.load_dataset'''					) as mock_load_dataset:
														snake_case_									=				dataset
														snake_case_									=				RagRetriever(
														    lowercase_       ,				question_encoder_tokenizer=self.get_dpr_tokenizer()       ,				generator_tokenizer=self.get_bart_tokenizer()       ,				)
									return retriever


				def   A_ (		self    :					str       ,				lowercase_    :					bool					):
									snake_case_									=				self.get_dummy_dataset()
									snake_case_									=				RagConfig(
									    retrieval_vector_size=self.retrieval_vector_size       ,				question_encoder=DPRConfig().to_dict()       ,				generator=BartConfig().to_dict()       ,				index_name='''custom'''       ,				)
									if from_disk:
														snake_case_									=				os.path.join(self.tmpdirname       ,				'''dataset'''					)
														snake_case_									=				os.path.join(self.tmpdirname       ,				'''index.faiss'''					)
														dataset.get_index('''embeddings'''					).save(os.path.join(self.tmpdirname       ,				'''index.faiss'''					)					)
														dataset.drop_index('''embeddings'''					)
														dataset.save_to_disk(os.path.join(self.tmpdirname       ,				'''dataset'''					)					)
														del dataset
														snake_case_									=				RagRetriever(
														    lowercase_       ,				question_encoder_tokenizer=self.get_dpr_tokenizer()       ,				generator_tokenizer=self.get_bart_tokenizer()       ,				)
									else:
														snake_case_									=				RagRetriever(
														    lowercase_       ,				question_encoder_tokenizer=self.get_dpr_tokenizer()       ,				generator_tokenizer=self.get_bart_tokenizer()       ,				index=CustomHFIndex(config.retrieval_vector_size       ,				lowercase_					)       ,				)
									return retriever


				def   A_ (		self    :					Tuple					):
									snake_case_									=				Dataset.from_dict(
									    {
									        '''id''': ['''0''', '''1'''],
									        '''text''': ['''foo''', '''bar'''],
									        '''title''': ['''Foo''', '''Bar'''],
									        '''embeddings''': [np.ones(self.retrieval_vector_size + 1					), 2 * np.ones(self.retrieval_vector_size + 1					)],
									    }					)
									dataset.add_faiss_index('''embeddings'''       ,				string_factory='''Flat'''       ,				metric_type=faiss.METRIC_INNER_PRODUCT					)

									snake_case_									=				os.path.join(self.tmpdirname       ,				'''hf_bert_base.hnswSQ8_correct_phi_128.c_index'''					)
									dataset.save_faiss_index('''embeddings'''       ,				index_file_name + '''.index.dpr'''					)
									pickle.dump(dataset['''id''']       ,				open(index_file_name + '''.index_meta.dpr'''       ,				'''wb'''					)					)

									snake_case_									=				os.path.join(self.tmpdirname       ,				'''psgs_w100.tsv.pkl'''					)
									snake_case_									=				{sample['''id''']: [sample['''text'''], sample['''title''']] for sample in dataset}
									pickle.dump(lowercase_       ,				open(lowercase_       ,				'''wb'''					)					)

									snake_case_									=				RagConfig(
									    retrieval_vector_size=self.retrieval_vector_size       ,				question_encoder=DPRConfig().to_dict()       ,				generator=BartConfig().to_dict()       ,				index_name='''legacy'''       ,				index_path=self.tmpdirname       ,				)
									snake_case_									=				RagRetriever(
									    lowercase_       ,				question_encoder_tokenizer=self.get_dpr_tokenizer()       ,				generator_tokenizer=self.get_bart_tokenizer()					)
									return retriever


				def   A_ (		self    :					Optional[Any]					):
									snake_case_									=				1
									snake_case_									=				self.get_dummy_canonical_hf_index_retriever()
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_			,snake_case_			,snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=lowercase_					)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertEqual(len(lowercase_					)       ,				2					)
									self.assertEqual(sorted(doc_dicts[0]					)       ,				['''embeddings''', '''id''', '''text''', '''title''']					)
									self.assertEqual(len(doc_dicts[0]['''id''']					)       ,				lowercase_					)
									self.assertEqual(doc_dicts[0]['''id'''][0]       ,				'''1'''					)  # max inner product is reached with second doc
									self.assertEqual(doc_dicts[1]['''id'''][0]       ,				'''0'''					)  # max inner product is reached with first doc
									self.assertListEqual(doc_ids.tolist()       ,				[[1], [0]]					)


				def   A_ (		self    :					str					):
									snake_case_									=				self.get_dummy_canonical_hf_index_retriever()
									with tempfile.TemporaryDirectory() as tmp_dirname:
														with patch('''transformers.models.rag.retrieval_rag.load_dataset'''					) as mock_load_dataset:
																			snake_case_									=				self.get_dummy_dataset()
																			retriever.save_pretrained(lowercase_					)
																			snake_case_									=				RagRetriever.from_pretrained(lowercase_					)
																			self.assertIsInstance(lowercase_       ,				lowercase_					)
																			snake_case_									=				np.array(
																			    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
																			snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=1					)
																			self.assertTrue(out is not None					)


				def   A_ (		self    :					int					):
									snake_case_									=				1
									snake_case_									=				self.get_dummy_custom_hf_index_retriever(from_disk=lowercase_					)
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_			,snake_case_			,snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=lowercase_					)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertEqual(len(lowercase_					)       ,				2					)
									self.assertEqual(sorted(doc_dicts[0]					)       ,				['''embeddings''', '''id''', '''text''', '''title''']					)
									self.assertEqual(len(doc_dicts[0]['''id''']					)       ,				lowercase_					)
									self.assertEqual(doc_dicts[0]['''id'''][0]       ,				'''1'''					)  # max inner product is reached with second doc
									self.assertEqual(doc_dicts[1]['''id'''][0]       ,				'''0'''					)  # max inner product is reached with first doc
									self.assertListEqual(doc_ids.tolist()       ,				[[1], [0]]					)


				def   A_ (		self    :					int					):
									snake_case_									=				self.get_dummy_custom_hf_index_retriever(from_disk=lowercase_					)
									with tempfile.TemporaryDirectory() as tmp_dirname:
														retriever.save_pretrained(lowercase_					)
														snake_case_									=				RagRetriever.from_pretrained(lowercase_					)
														self.assertIsInstance(lowercase_       ,				lowercase_					)
														snake_case_									=				np.array(
														    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
														snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=1					)
														self.assertTrue(out is not None					)


				def   A_ (		self    :					str					):
									snake_case_									=				1
									snake_case_									=				self.get_dummy_custom_hf_index_retriever(from_disk=lowercase_					)
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_			,snake_case_			,snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=lowercase_					)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertEqual(len(lowercase_					)       ,				2					)
									self.assertEqual(sorted(doc_dicts[0]					)       ,				['''embeddings''', '''id''', '''text''', '''title''']					)
									self.assertEqual(len(doc_dicts[0]['''id''']					)       ,				lowercase_					)
									self.assertEqual(doc_dicts[0]['''id'''][0]       ,				'''1'''					)  # max inner product is reached with second doc
									self.assertEqual(doc_dicts[1]['''id'''][0]       ,				'''0'''					)  # max inner product is reached with first doc
									self.assertListEqual(doc_ids.tolist()       ,				[[1], [0]]					)


				def   A_ (		self    :					Any					):
									snake_case_									=				self.get_dummy_custom_hf_index_retriever(from_disk=lowercase_					)
									with tempfile.TemporaryDirectory() as tmp_dirname:
														retriever.save_pretrained(lowercase_					)
														snake_case_									=				RagRetriever.from_pretrained(lowercase_					)
														self.assertIsInstance(lowercase_       ,				lowercase_					)
														snake_case_									=				np.array(
														    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
														snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=1					)
														self.assertTrue(out is not None					)


				def   A_ (		self    :					Any					):
									snake_case_									=				1
									snake_case_									=				self.get_dummy_legacy_index_retriever()
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_			,snake_case_			,snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=lowercase_					)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertEqual(len(lowercase_					)       ,				2					)
									self.assertEqual(sorted(doc_dicts[0]					)       ,				['''text''', '''title''']					)
									self.assertEqual(len(doc_dicts[0]['''text''']					)       ,				lowercase_					)
									self.assertEqual(doc_dicts[0]['''text'''][0]       ,				'''bar'''					)  # max inner product is reached with second doc
									self.assertEqual(doc_dicts[1]['''text'''][0]       ,				'''foo'''					)  # max inner product is reached with first doc
									self.assertListEqual(doc_ids.tolist()       ,				[[1], [0]]					)


				def   A_ (		self    :					int					):
									snake_case_									=				self.get_dummy_legacy_index_retriever()
									with tempfile.TemporaryDirectory() as tmp_dirname:
														retriever.save_pretrained(lowercase_					)
														snake_case_									=				RagRetriever.from_pretrained(lowercase_					)
														self.assertIsInstance(lowercase_       ,				lowercase_					)
														snake_case_									=				np.array(
														    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
														snake_case_									=				retriever.retrieve(lowercase_       ,				n_docs=1					)
														self.assertTrue(out is not None					)


				@require_torch
				@require_tokenizers
				@require_sentencepiece
				def   A_ (		self    :					List[str]					):
									import torch

									snake_case_									=				1
									snake_case_									=				self.get_dummy_canonical_hf_index_retriever()
									snake_case_									=				[[5, 7], [10, 11]]
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_									=				retriever(lowercase_       ,				lowercase_       ,				prefix=retriever.config.generator.prefix       ,				n_docs=lowercase_					)
									snake_case_			,snake_case_			,snake_case_									=				(
									    out['''context_input_ids'''],
									    out['''context_attention_mask'''],
									    out['''retrieved_doc_embeds'''],
									)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertIsInstance(lowercase_       ,				lowercase_					)
									self.assertIsInstance(lowercase_       ,				lowercase_					)
									self.assertIsInstance(lowercase_       ,				np.ndarray					)

									snake_case_									=				retriever(
									    lowercase_       ,				lowercase_       ,				prefix=retriever.config.generator.prefix       ,				n_docs=lowercase_       ,				return_tensors='''pt'''       ,				)
									snake_case_			,snake_case_			,snake_case_			,snake_case_									=				(  # noqa: F841
									    out['''context_input_ids'''],
									    out['''context_attention_mask'''],
									    out['''retrieved_doc_embeds'''],
									    out['''doc_ids'''],
									)
									self.assertEqual(retrieved_doc_embeds.shape       ,				(2, n_docs, self.retrieval_vector_size)					)
									self.assertIsInstance(lowercase_       ,				torch.Tensor					)
									self.assertIsInstance(lowercase_       ,				torch.Tensor					)
									self.assertIsInstance(lowercase_       ,				torch.Tensor					)


				@require_torch
				@require_tokenizers
				@require_sentencepiece
				def   A_ (		self    :					Tuple					):
									snake_case_									=				self.get_dpr_ctx_encoder_tokenizer()
									snake_case_									=				1
									snake_case_									=				self.get_dummy_custom_hf_index_retriever(from_disk=lowercase_					)
									retriever.set_ctx_encoder_tokenizer(lowercase_					)

									snake_case_									=				[[5, 7], [10, 11]]
									snake_case_									=				np.array(
									    [np.ones(self.retrieval_vector_size					), -np.ones(self.retrieval_vector_size					)]       ,				dtype=np.floataa					)
									snake_case_									=				retriever(lowercase_       ,				lowercase_       ,				prefix=retriever.config.generator.prefix       ,				n_docs=lowercase_					)

									self.assertEqual(
									    len(lowercase_					)       ,				6					)  # check whether the retriever output consist of 6 attributes including tokenized docs
									self.assertEqual(
									    all(k in out for k in ('''tokenized_doc_ids''', '''tokenized_doc_attention_mask''')					)       ,				lowercase_					)  # check for doc token related keys in dictionary.





'''simple docstring'''
def 					a__       (					lowerCAmelCase__						)    ->	int:
    UpperCAmelCase__			:		Tuple													=				0
    while num > 0:
        digit_sum += num % 10
        num //= 10
    return digit_sum





def 					a__       (					lowerCAmelCase__ = 1_00						)    ->	int:
    UpperCAmelCase__			:		Dict													=				1
    UpperCAmelCase__			:		str													=				2

    for i in range(2  ,					max_n + 1						):
        UpperCAmelCase__			:		Tuple													=				pre_numerator
        UpperCAmelCase__			:		Tuple													=				2 * i // 3 if i % 3 == 0 else 1
        UpperCAmelCase__			:		str													=				cur_numerator
        UpperCAmelCase__			:		List[str]													=				e_cont * pre_numerator + temp

    return sum_digits(lowerCAmelCase__						)


if __name__ == "__main__":
  print(F"""{solution() = }""")
