





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 		snake_case_   (							UpperCAmelCase_						):







	'''simple docstring'''
	__UpperCamelCase   =		''''''
	__UpperCamelCase   =		'''hf-legacy'''  # "hf://"" is reserved for hffs




	def __init__(						self							:     Dict					,      __lowerCamelCase							:     Optional[DatasetInfo] = None					,      __lowerCamelCase							:     Optional[str] = None					,      **__lowerCamelCase							:     List[Any]					,      )       -> Dict:

			'''simple docstring'''




			super().__init__(self					,      **__lowerCamelCase   )
			__lowercase											=     repo_info
			__lowercase											=     token
			__lowercase											=     None




	def    UpperCAmelCase			(						self							:     Union[str, Any]   )       -> Optional[Any]:

			'''simple docstring'''




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




	def    UpperCAmelCase			(						self							:     Optional[Any]					,      __lowerCamelCase							:     str					,      __lowerCamelCase							:     str = "rb"					,      **__lowerCamelCase							:     Tuple					,      )       -> str:

			'''simple docstring'''




			if not isinstance(self.repo_info					,      __lowerCamelCase   ):
					raise NotImplementedError(F"Open is only implemented for dataset repositories, but got {self.repo_info}"   )
			__lowercase											=     hf_hub_url(self.repo_info.id					,      __lowerCamelCase					,      revision=self.repo_info.sha   )
			return fsspec.open(
			    __lowerCamelCase					,      mode=__lowerCamelCase					,      headers=get_authentication_headers_for_url(__lowerCamelCase					,      use_auth_token=self.token   )					,      client_kwargs={'trust_env': True}					,      ).open()




	def    UpperCAmelCase			(						self							:     List[Any]					,      __lowerCamelCase							:     str					,      **__lowerCamelCase							:     Dict   )       -> List[str]:

			'''simple docstring'''




			self._get_dirs()
			__lowercase											=     self._strip_protocol(__lowerCamelCase   )
			if path in self.dir_cache:
					return self.dir_cache[path]
			else:
					raise FileNotFoundError(__lowerCamelCase   )






	def    UpperCAmelCase			(						self							:     List[Any]					,      __lowerCamelCase							:     List[str]					,      __lowerCamelCase							:     Dict=False					,      **__lowerCamelCase							:     Optional[Any]   )       -> Dict:

			'''simple docstring'''




			self._get_dirs()
			__lowercase											=     PurePosixPath(path.strip('/'   )   )
			__lowercase											=     {}
			for p, f in self.dir_cache.items():
					__lowercase											=     PurePosixPath(p.strip('/'   )   )
					__lowercase											=     p.parent
					if root == path:
							__lowercase											=     f
			__lowercase											=     list(paths.values()   )
			if detail:
					return out
			else:
					return sorted(f['name'] for f in out   )











from math import factorial



def  SCREAMING_SNAKE_CASE				(      snake_case						,   snake_case							)		->    int:

		# If either of the conditions are true, the function is being asked
		# to calculate a factorial of a negative number, which is not possible
		if n < k or k < 0:
				raise ValueError('Please enter positive integers for n and k where n >= k'							)
		return factorial(snake_case							) // (factorial(snake_case							) * factorial(n - k							))


if __name__ == "__main__":
		print(
		    '''The number of five-card hands possible from a standard''',
		    F"""fifty-two card deck is: {combinations(52, 5)}\n""",
		)

		print(
		    '''If a class of 40 students must be arranged into groups of''',
		    F"""4 for group projects, there are {combinations(40, 4)} ways""",
		    '''to arrange them.\n''',
		)

		print(
		    '''If 10 teams are competing in a Formula One race, there''',
		    F"""are {combinations(10, 3)} ways that first, second and""",
		    '''third place can be awarded.''',
		)




