



"""simple docstring"""


from pathlib import PurePosixPath
from typing import Optional

import fsspec
from fsspec import AbstractFileSystem
from huggingface_hub.hf_api import DatasetInfo

from ..utils.file_utils import get_authentication_headers_for_url
from ..utils.hub import hf_hub_url
class 			_a (					lowerCAmelCase):
			"""simple docstring"""
			UpperCamelCase__			      =	""""""
			UpperCamelCase__			      =	"""hf-legacy"""  # "hf://"" is reserved for hffs



			def __init__(		self     :    Union[str, Any]				,   __UpperCamelCase     :    Optional[DatasetInfo] = None				,   __UpperCamelCase     :    Optional[str] = None				,   **__UpperCamelCase     :    Dict				,   )->List[Any]:
							super().__init__(self				,   **__UpperCamelCase   )
							_UpperCAmelCase					=    repo_info
							_UpperCAmelCase					=    token
							_UpperCAmelCase					=    None



			def  lowercase__						(		self     :    Optional[int]   )->Optional[int]:
							if self.dir_cache is None:
											_UpperCAmelCase					=    {}
											for hf_file in self.repo_info.siblings:
															# TODO(QL): add sizes
															_UpperCAmelCase					=    {
															    '''name''': hf_file.rfilename,
															    '''size''': None,
															    '''type''': '''file''',
															}
															self.dir_cache.update(
															    {
															        str(__UpperCamelCase   ): {'''name''': str(__UpperCamelCase   ), '''size''': None, '''type''': '''directory'''}
															        for d in list(PurePosixPath(hf_file.rfilename   ).parents   )[:-1]
															    }   )



			def  lowercase__						(		self     :    Any				,   __UpperCamelCase     :    str				,   __UpperCamelCase     :    str = "rb"				,   **__UpperCamelCase     :    Dict				,   )->Any:
							if not isinstance(self.repo_info				,   __UpperCamelCase   ):
											raise NotImplementedError(F'Open is only implemented for dataset repositories, but got {self.repo_info}'   )
							_UpperCAmelCase					=    hf_hub_url(self.repo_info.id				,   __UpperCamelCase				,   revision=self.repo_info.sha   )
							return fsspec.open(
							    __UpperCamelCase				,   mode=__UpperCamelCase				,   headers=get_authentication_headers_for_url(__UpperCamelCase				,   use_auth_token=self.token   )				,   client_kwargs={'''trust_env''': True}				,   ).open()



			def  lowercase__						(		self     :    List[str]				,   __UpperCamelCase     :    List[str]				,   **__UpperCamelCase     :    Dict   )->int:
							self._get_dirs()
							_UpperCAmelCase					=    self._strip_protocol(__UpperCamelCase   )
							if path in self.dir_cache:
											return self.dir_cache[path]
							else:
											raise FileNotFoundError(__UpperCamelCase   )



			def  lowercase__						(		self     :    str				,   __UpperCamelCase     :    Optional[Any]				,   __UpperCamelCase     :    Union[str, Any]=False				,   **__UpperCamelCase     :    Any   )->Any:
							self._get_dirs()
							_UpperCAmelCase					=    PurePosixPath(path.strip('''/'''   )   )
							_UpperCAmelCase					=    {}
							for p, f in self.dir_cache.items():
											_UpperCAmelCase					=    PurePosixPath(p.strip('''/'''   )   )
											_UpperCAmelCase					=    p.parent
											if root == path:
															_UpperCAmelCase					=    f
							_UpperCAmelCase					=    list(paths.values()   )
							if detail:
											return out
							else:
											return sorted(f['''name'''] for f in out   )








"""simple docstring"""


class 			_a :
			"""simple docstring"""



			def __init__(		self     :    Tuple				,   __UpperCamelCase     :    list[int]   )->None:
							_UpperCAmelCase					=    len(__UpperCamelCase   )
							_UpperCAmelCase					=    [0] * len_array

							if len_array > 0:
											_UpperCAmelCase					=    array[0]

							for i in range(1				,   __UpperCamelCase   ):
											_UpperCAmelCase					=    self.prefix_sum[i - 1] + array[i]



			def  lowercase__						(		self     :    str				,   __UpperCamelCase     :    int				,   __UpperCamelCase     :    int   )->int:
							if start == 0:
											return self.prefix_sum[end]

							return self.prefix_sum[end] - self.prefix_sum[start - 1]



			def  lowercase__						(		self     :    Any				,   __UpperCamelCase     :    int   )->bool:
							_UpperCAmelCase					=    {0}
							for sum_item in self.prefix_sum:
											if sum_item - target_sum in sums:
															return True

											sums.add(__UpperCamelCase   )

							return False


if __name__ == "__main__":
					import doctest

					doctest.testmod()



