from typing import Optional

from .. import Features, NamedSplit
from ..packaged_modules.text.text import Text
from ..utils.typing import NestedDataStructureLike, PathLike
from .abc import AbstractDatasetReader



class   lowerCAmelCase_    (			UpperCamelCase__					):



				"""simple docstring"""

				def __init__(				self		,    lowerCAmelCase		,    lowerCAmelCase = None		,    lowerCAmelCase = None		,    lowerCAmelCase = None		,    lowerCAmelCase = False		,    lowerCAmelCase = False		,    lowerCAmelCase = None		,    **lowerCAmelCase		,    ):






										"""simple docstring"""

										super().__init__(
										    __A		,    split=__A		,    features=__A		,    cache_dir=__A		,    keep_in_memory=__A		,    streaming=__A		,    num_proc=__A		,    **__A		,    )
										snake_case								=			path_or_paths if isinstance(__A		,    __A    ) else {self.split: path_or_paths}
										snake_case								=			Text(
										    cache_dir=__A		,    data_files=__A		,    features=__A		,    **__A		,    )

				def 		snake_case (				self    ):






										"""simple docstring"""

										if self.streaming:
																snake_case								=			self.builder.as_streaming_dataset(split=self.split    )
										# Build regular (map-style) dataset
										else:
																snake_case								=			None
																snake_case								=			None
																snake_case								=			None
																snake_case								=			None

																self.builder.download_and_prepare(
																    download_config=__A		,    download_mode=__A		,    verification_mode=__A		,    base_path=__A		,    num_proc=self.num_proc		,    )
																snake_case								=			self.builder.as_dataset(
																    split=self.split		,    verification_mode=__A		,    in_memory=self.keep_in_memory    )
										return dataset



"""simple docstring"""
import unittest

from transformers.utils.backbone_utils import (
    BackboneMixin,
    get_aligned_output_features_output_indices,
    verify_out_features_out_indices,
)



class   lowerCAmelCase_    (			unittest.TestCase					):



				"""simple docstring"""

				def 		snake_case (				self    ):






										"""simple docstring"""

										snake_case								=			['a', 'b', 'c']

										# Defaults to last layer if both are None
										snake_case					,snake_case								=			get_aligned_output_features_output_indices(lowerCAmelCase		,    lowerCAmelCase		,    lowerCAmelCase    )
										self.assertEqual(lowerCAmelCase		,    ['c']    )
										self.assertEqual(lowerCAmelCase		,    [2]    )

										# Out indices set to match out features
										snake_case					,snake_case								=			get_aligned_output_features_output_indices(['a', 'c']		,    lowerCAmelCase		,    lowerCAmelCase    )
										self.assertEqual(lowerCAmelCase		,    ['a', 'c']    )
										self.assertEqual(lowerCAmelCase		,    [0, 2]    )

										# Out features set to match out indices
										snake_case					,snake_case								=			get_aligned_output_features_output_indices(lowerCAmelCase		,    [0, 2]		,    lowerCAmelCase    )
										self.assertEqual(lowerCAmelCase		,    ['a', 'c']    )
										self.assertEqual(lowerCAmelCase		,    [0, 2]    )

										# Out features selected from negative indices
										snake_case					,snake_case								=			get_aligned_output_features_output_indices(lowerCAmelCase		,    [-3, -1]		,    lowerCAmelCase    )
										self.assertEqual(lowerCAmelCase		,    ['a', 'c']    )
										self.assertEqual(lowerCAmelCase		,    [-3, -1]    )

				def 		snake_case (				self    ):






										"""simple docstring"""

										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(['a', 'b']		,    (0, 1)		,    lowerCAmelCase    )

										# Out features must be a list
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(('a', 'b')		,    (0, 1)		,    ['a', 'b']    )

										# Out features must be a subset of stage names
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(['a', 'b']		,    (0, 1)		,    ['a']    )

										# Out indices must be a list or tuple
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(lowerCAmelCase		,    0		,    ['a', 'b']    )

										# Out indices must be a subset of stage names
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(lowerCAmelCase		,    (0, 1)		,    ['a']    )

										# Out features and out indices must be the same length
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(['a', 'b']		,    (0,)		,    ['a', 'b', 'c']    )

										# Out features should match out indices
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(['a', 'b']		,    (0, 2)		,    ['a', 'b', 'c']    )

										# Out features and out indices should be in order
										with self.assertRaises(lowerCAmelCase    ):
																verify_out_features_out_indices(['b', 'a']		,    (0, 1)		,    ['a', 'b']    )

										# Check passes with valid inputs
										verify_out_features_out_indices(['a', 'b', 'd']		,    (0, 1, -1)		,    ['a', 'b', 'c', 'd']    )

				def 		snake_case (				self    ):






										"""simple docstring"""

										snake_case								=			BackboneMixin()

										snake_case								=			['a', 'b', 'c']
										snake_case								=			['a', 'c']
										snake_case								=			[0, 2]

										# Check that the output features and indices are set correctly
										self.assertEqual(backbone.out_features		,    ['a', 'c']    )
										self.assertEqual(backbone.out_indices		,    [0, 2]    )

										# Check out features and indices are updated correctly
										snake_case								=			['a', 'b']
										self.assertEqual(backbone.out_features		,    ['a', 'b']    )
										self.assertEqual(backbone.out_indices		,    [0, 1]    )

										snake_case								=			[-3, -1]
										self.assertEqual(backbone.out_features		,    ['a', 'c']    )
										self.assertEqual(backbone.out_indices		,    [-3, -1]    )


