


from typing import Optional

import pyspark

from .. import Features, NamedSplit
from ..download import DownloadMode
from ..packaged_modules.spark.spark import Spark
from .abc import AbstractDatasetReader


class 			_a				(     UpperCamelCase__     ):

							def __init__(				self:      int       ,		UpperCamelCase_:      pyspark.sql.DataFrame       ,		UpperCamelCase_:      Optional[NamedSplit] = None       ,		UpperCamelCase_:      Optional[Features] = None       ,		UpperCamelCase_:      bool = True       ,		UpperCamelCase_:      str = None       ,		UpperCamelCase_:      bool = False       ,		UpperCamelCase_:      str = None       ,		UpperCamelCase_:      bool = True       ,		UpperCamelCase_:      str = "arrow"       ,		**UpperCamelCase_:      List[Any]       ,		)     ->  Any:





									"""simple docstring"""







									super().__init__(
									    split=UpperCamelCase_       ,		features=UpperCamelCase_       ,		cache_dir=UpperCamelCase_       ,		keep_in_memory=UpperCamelCase_       ,		streaming=UpperCamelCase_       ,		**UpperCamelCase_       ,		)
									lowercase__				= load_from_cache_file
									lowercase__				= file_format
									lowercase__				= Spark(
									    df=UpperCamelCase_       ,		features=UpperCamelCase_       ,		cache_dir=UpperCamelCase_       ,		working_dir=UpperCamelCase_       ,		**UpperCamelCase_       ,		)


							def  lowerCamelCase_					(				self:      Tuple				)     ->  Dict:





									"""simple docstring"""







									if self.streaming:
											return self.builder.as_streaming_dataset(split=self.split				)
									lowercase__				= None if self._load_from_cache_file else DownloadMode.FORCE_REDOWNLOAD
									self.builder.download_and_prepare(
									    download_mode=UpperCamelCase_       ,		file_format=self._file_format       ,		)
									return self.builder.as_dataset(split=self.split				)








from __future__ import annotations

from typing import Any

def lowercase    (  SCREAMING_SNAKE_CASE )			->							None:


			'''simple docstring'''







			create_state_space_tree(SCREAMING_SNAKE_CASE       ,    []       ,    0 )

def lowercase    (  SCREAMING_SNAKE_CASE       ,    SCREAMING_SNAKE_CASE       ,    SCREAMING_SNAKE_CASE )			->							None:


			'''simple docstring'''







			if index == len(SCREAMING_SNAKE_CASE ):
						print(SCREAMING_SNAKE_CASE )
						return

			create_state_space_tree(SCREAMING_SNAKE_CASE       ,    SCREAMING_SNAKE_CASE       ,    index + 1 )
			current_subsequence.append(sequence[index] )
			create_state_space_tree(SCREAMING_SNAKE_CASE       ,    SCREAMING_SNAKE_CASE       ,    index + 1 )
			current_subsequence.pop()


if __name__ == "__main__":
				SCREAMING_SNAKE_CASE__     :     list[Any]		    =       [3, 1, 2, 4]
				generate_all_subsequences(seq)

				seq.clear()
				seq.extend(["A", "B", "C"])
				generate_all_subsequences(seq)
