
"""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     lowercase(_lowercase       ):
     __snake_case:	List[Any]						=     ''
     __snake_case:	Optional[Any]						=     'hf-legacy'  # "hf://"" is reserved for hffs



     def __init__(							self     ,				__SCREAMING_SNAKE_CASE = None     ,				__SCREAMING_SNAKE_CASE = None     ,				**__SCREAMING_SNAKE_CASE     ,				)		->     Optional[Any]:







         """simple docstring"""



         super().__init__(self     ,				**__SCREAMING_SNAKE_CASE   )
         a__		=			repo_info
         a__		=			token
         a__		=			None



     def 			lowercase__  (							self   )		->     str:







         """simple docstring"""



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



     def 			lowercase__  (							self     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE = "rb"     ,				**__SCREAMING_SNAKE_CASE     ,				)		->     Dict:







         """simple docstring"""



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



     def 			lowercase__  (							self     ,				__SCREAMING_SNAKE_CASE     ,				**__SCREAMING_SNAKE_CASE   )		->     List[str]:







         """simple docstring"""



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




     def 			lowercase__  (							self     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE=False     ,				**__SCREAMING_SNAKE_CASE   )		->     Tuple:







         """simple docstring"""



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




"""simple docstring"""




def     __magic_name__		(					UpperCamelCase     :		float							,		UpperCamelCase     :		float							,		UpperCamelCase     :		float							,		UpperCamelCase     :		float							,		UpperCamelCase     :		float							,		)     ->						float:
    a__		=			[redshift, radiation_density, matter_density, dark_energy]
    if any(p < 0 for p in parameters     ):
        raise ValueError('All input parameters must be positive'     )

    if any(p > 1 for p in parameters[1:4]     ):
        raise ValueError('Relative densities cannot be greater than one'     )
    else:
        a__		=			1 - (matter_density + radiation_density + dark_energy)

        a__		=			(
            radiation_density * (redshift + 1) ** 4
            + matter_density * (redshift + 1) ** 3
            + curvature * (redshift + 1) ** 2
            + dark_energy
        )

        a__		=			hubble_constant * e_a ** (1 / 2)
        return hubble


if __name__ == "__main__":
    import doctest

    # run doctest
    doctest.testmod()

    # demo LCDM approximation
    a		:       Any     						=       0.3

    print(
        hubble_parameter(
            hubble_constant=68.3,
            radiation_density=1e-4,
            matter_density=matter_density,
            dark_energy=1 - matter_density,
            redshift=0,
        )
    )


