





import logging
import os
from dataclasses import dataclass, field
from functools import partial
from pathlib import Path
from tempfile import TemporaryDirectory
from typing import List, Optional

import faiss
import torch
from datasets import Features, Sequence, Value, load_dataset

from transformers import DPRContextEncoder, DPRContextEncoderTokenizerFast, HfArgumentParser


lowercase      :       List[str]									=  logging.getLogger(__name__)
torch.set_grad_enabled(False)
lowercase      :       List[str]									=  """cuda""" if torch.cuda.is_available() else """cpu"""



def A_	(		A__		,      A__=100		,      A__=" "				)  ->		List[str]:
       a__						:	List[Any] =				text.split(A__				)
       return [character.join(text[i : i + n]				).strip() for i in range(0		,      len(A__				)		,      A__				)]



def A_	(		A__				)  ->		dict:
       a__ ,							a__						:	Tuple =				[], []
       for title, text in zip(documents['title']		,      documents['text']				):
              if text is not None:
                     for passage in split_text(A__				):
                            titles.append(title if title is not None else ''				)
                            texts.append(A__				)
       return {"title": titles, "text": texts}



def A_	(		A__		,      A__		,      A__				)  ->		dict:
       a__						:	Optional[int] =				ctx_tokenizer(
           documents['title']		,      documents['text']		,      truncation=A__		,      padding='longest'		,      return_tensors='pt'				)['input_ids']
       a__						:	List[Any] =				ctx_encoder(input_ids.to(device=A__				)		,      return_dict=A__				).pooler_output
       return {"embeddings": embeddings.detach().cpu().numpy()}



def A_	(		A__		,      A__		,      A__		,      )  ->		Dict:
       ######################################
       logger.info('Step 1 - Create the dataset'				)
       ######################################

       # The dataset needed for RAG must have three columns:
       # - title (string): title of the document
       # - text (string): text of a passage of the document
       # - embeddings (array of dimension d): DPR representation of the passage
       # Let's say you have documents in tab-separated csv files with columns "title" and "text"
       assert os.path.isfile(rag_example_args.csv_path				), "Please provide a valid path to a csv file"

       # You can load a Dataset object this way
       a__						:	Optional[int] =				load_dataset(
           'csv'		,      data_files=[rag_example_args.csv_path]		,      split='train'		,      delimiter='\t'		,      column_names=['title', 'text']				)

       # More info about loading csv files in the documentation: https://huggingface.co/docs/datasets/loading_datasets.html?highlight=csv#csv-files

       # Then split the documents into passages of 100 words
       a__						:	Any =				dataset.map(A__		,      batched=A__		,      num_proc=processing_args.num_proc				)

       # And compute the embeddings
       a__						:	Any =				DPRContextEncoder.from_pretrained(rag_example_args.dpr_ctx_encoder_model_name				).to(device=A__				)
       a__						:	int =				DPRContextEncoderTokenizerFast.from_pretrained(rag_example_args.dpr_ctx_encoder_model_name				)
       a__						:	Union[str, Any] =				Features(
           {'text': Value('string'				), 'title': Value('string'				), 'embeddings': Sequence(Value('float32'				)				)}				)  # optional, save as float32 instead of float64 to save space
       a__						:	str =				dataset.map(
           partial(A__		,      ctx_encoder=A__		,      ctx_tokenizer=A__				)		,      batched=A__		,      batch_size=processing_args.batch_size		,      features=A__		,      )

       # And finally save your dataset
       a__						:	Any =				os.path.join(rag_example_args.output_dir		,      'my_knowledge_dataset'				)
       dataset.save_to_disk(A__				)
       # from datasets import load_from_disk
       # dataset = load_from_disk(passages_path)  # to reload the dataset

       ######################################
       logger.info('Step 2 - Index the dataset'				)
       ######################################

       # Let's use the Faiss implementation of HNSW for fast approximate nearest neighbor search
       a__						:	Optional[Any] =				faiss.IndexHNSWFlat(index_hnsw_args.d		,      index_hnsw_args.m		,      faiss.METRIC_INNER_PRODUCT				)
       dataset.add_faiss_index('embeddings'		,      custom_index=A__				)

       # And save the index
       a__						:	Optional[int] =				os.path.join(rag_example_args.output_dir		,      'my_knowledge_dataset_hnsw_index.faiss'				)
       dataset.get_index('embeddings'				).save(A__				)
       # dataset.load_faiss_index("embeddings", index_path)  # to reload the index





@dataclass
class  A__    :




   """simple docstring"""



   __A   :				str         =  field(
       default=str(Path(__UpperCAmelCase	).parent / '''test_run''' / '''dummy-kb''' / '''my_knowledge_dataset.csv'''	) ,  metadata={'''help''': '''Path to a tab-separated csv file with columns \'title\' and \'text\''''} ,  )
   __A   :				Optional[str]         =  field(
       default=__UpperCAmelCase ,  metadata={'''help''': '''Question that is passed as input to RAG. Default is \'What does Moses\' rod turn into ?\'.'''} ,  )
   __A   :				str         =  field(
       default='''facebook/rag-sequence-nq''' ,  metadata={'''help''': '''The RAG model to use. Either \'facebook/rag-sequence-nq\' or \'facebook/rag-token-nq\''''} ,  )
   __A   :				str         =  field(
       default='''facebook/dpr-ctx_encoder-multiset-base''' ,  metadata={
           '''help''': (
               '''The DPR context encoder model to use. Either \'facebook/dpr-ctx_encoder-single-nq-base\' or'''
               ''' \'facebook/dpr-ctx_encoder-multiset-base\''''
           )
       } ,  )
   __A   :				Optional[str]         =  field(
       default=str(Path(__UpperCAmelCase	).parent / '''test_run''' / '''dummy-kb'''	) ,  metadata={'''help''': '''Path to a directory where the dataset passages and the index will be saved'''} ,  )





@dataclass
class  A__    :




   """simple docstring"""



   __A   :				Optional[int]         =  field(
       default=__UpperCAmelCase ,  metadata={
           '''help''': '''The number of processes to use to split the documents into passages. Default is single process.'''
       } ,  )
   __A   :				int         =  field(
       default=1_6 ,  metadata={
           '''help''': '''The batch size to use when computing the passages embeddings using the DPR context encoder.'''
       } ,  )





@dataclass
class  A__    :




   """simple docstring"""



   __A   :				int         =  field(
       default=7_6_8 ,  metadata={'''help''': '''The dimension of the embeddings to pass to the HNSW Faiss index.'''} ,  )
   __A   :				int         =  field(
       default=1_2_8 ,  metadata={
           '''help''': (
               '''The number of bi-directional links created for every new element during the HNSW index construction.'''
           )
       } ,  )


if __name__ == "__main__":
    logging.basicConfig(level=logging.WARNING)
    logger.setLevel(logging.INFO)

    lowercase      :       Any									=  HfArgumentParser((RagExampleArguments, ProcessingArguments, IndexHnswArguments))
    lowercase						,					lowercase						,					lowercase      :       Optional[Any]									=  parser.parse_args_into_dataclasses()
    with TemporaryDirectory() as tmp_dir:
        lowercase      :       Any									=  rag_example_args.output_dir or tmp_dir
        main(rag_example_args, processing_args, index_hnsw_args)





from __future__ import annotations

from math import pi, sqrt


def   __SCREAMING_SNAKE_CASE					(SCREAMING_SNAKE_CASE__  ,		SCREAMING_SNAKE_CASE__       ):

						if inductance <= 0:
												raise ValueError('''Inductance cannot be 0 or negative'''       )

						elif capacitance <= 0:
												raise ValueError('''Capacitance cannot be 0 or negative'''       )

						else:
												return (
												    "Resonant frequency",
												    float(1 / (2 * pi * (sqrt(inductance * capacitance       )))       ),
												)


if __name__ == "__main__":
					import doctest

					doctest.testmod()