




class 	lowerCamelCase_							:


 '''simple docstring'''







 def __init__(							self  :		Dict    ,    _lowerCAmelCase  :		int    ,    _lowerCAmelCase  :		Union[str, Any]=None    ,    _lowerCAmelCase  :		Union[str, Any]=None						):
       SCREAMING_SNAKE_CASE_     						=      data
       SCREAMING_SNAKE_CASE_     						=      previous
       SCREAMING_SNAKE_CASE_     						=      next_node



 def __str__(							self  :		Optional[Any]						):
       return F"{self.data}"



 def 				lowerCAmelCase_  (							self  :		Any						):
       return self.data



 def 				lowerCAmelCase_  (							self  :		Union[str, Any]						):
       return self.next




 def 				lowerCAmelCase_  (							self  :		Union[str, Any]						):
       return self.previous





class 	lowerCamelCase_							:


 '''simple docstring'''







 def __init__(							self  :		str    ,    _lowerCAmelCase  :		Union[str, Any]						):
       SCREAMING_SNAKE_CASE_     						=      head



 def __iter__(							self  :		Dict						):
       return self




 def 				lowerCAmelCase_  (							self  :		Optional[int]						):
       if not self.current:
             raise StopIteration
       else:
             SCREAMING_SNAKE_CASE_     						=      self.current.get_data()
             SCREAMING_SNAKE_CASE_     						=      self.current.get_next()
             return value





class 	lowerCamelCase_							:


 '''simple docstring'''







 def __init__(							self  :		Tuple						):
       SCREAMING_SNAKE_CASE_     						=      None  # First node in list
       SCREAMING_SNAKE_CASE_     						=      None  # Last node in list



 def __str__(							self  :		Dict						):
       SCREAMING_SNAKE_CASE_     						=      self.head
       SCREAMING_SNAKE_CASE_     						=      []
       while current is not None:
             nodes.append(current.get_data()						)
             SCREAMING_SNAKE_CASE_     						=      current.get_next()
       return " ".join(str(__lowerCAmelCase						) for node in nodes						)



 def __contains__(							self  :		Optional[int]    ,    _lowerCAmelCase  :		int						):
       SCREAMING_SNAKE_CASE_     						=      self.head
       while current:
             if current.get_data() == value:
                   return True
             SCREAMING_SNAKE_CASE_     						=      current.get_next()
       return False



 def __iter__(							self  :		str						):
       return LinkedListIterator(self.head						)



 def 				lowerCAmelCase_  (							self  :		Any						):
       if self.head:
             return self.head.get_data()
       return None



 def 				lowerCAmelCase_  (							self  :		str						):
       if self.tail:
             return self.tail.get_data()
       return None



 def 				lowerCAmelCase_  (							self  :		int    ,    _lowerCAmelCase  :		Node						):
       if self.head is None:
             SCREAMING_SNAKE_CASE_     						=      node
             SCREAMING_SNAKE_CASE_     						=      node
       else:
             self.insert_before_node(self.head    ,    __lowerCAmelCase						)



 def 				lowerCAmelCase_  (							self  :		Optional[int]    ,    _lowerCAmelCase  :		Node						):
       if self.head is None:
             self.set_head(__lowerCAmelCase						)
       else:
             self.insert_after_node(self.tail    ,    __lowerCAmelCase						)



 def 				lowerCAmelCase_  (							self  :		Optional[Any]    ,    _lowerCAmelCase  :		int						):
       SCREAMING_SNAKE_CASE_     						=      Node(__lowerCAmelCase						)
       if self.head is None:
             self.set_head(__lowerCAmelCase						)
       else:
             self.set_tail(__lowerCAmelCase						)



 def 				lowerCAmelCase_  (							self  :		List[str]    ,    _lowerCAmelCase  :		Node    ,    _lowerCAmelCase  :		Node						):
       SCREAMING_SNAKE_CASE_     						=      node
       SCREAMING_SNAKE_CASE_     						=      node.previous

       if node.get_previous() is None:
             SCREAMING_SNAKE_CASE_     						=      node_to_insert
       else:
             SCREAMING_SNAKE_CASE_     						=      node_to_insert

       SCREAMING_SNAKE_CASE_     						=      node_to_insert



 def 				lowerCAmelCase_  (							self  :		Optional[int]    ,    _lowerCAmelCase  :		Node    ,    _lowerCAmelCase  :		Node						):
       SCREAMING_SNAKE_CASE_     						=      node
       SCREAMING_SNAKE_CASE_     						=      node.next

       if node.get_next() is None:
             SCREAMING_SNAKE_CASE_     						=      node_to_insert
       else:
             SCREAMING_SNAKE_CASE_     						=      node_to_insert

       SCREAMING_SNAKE_CASE_     						=      node_to_insert



 def 				lowerCAmelCase_  (							self  :		List[Any]    ,    _lowerCAmelCase  :		int    ,    _lowerCAmelCase  :		int						):
       SCREAMING_SNAKE_CASE_     						=      1
       SCREAMING_SNAKE_CASE_     						=      Node(__lowerCAmelCase						)
       SCREAMING_SNAKE_CASE_     						=      self.head
       while node:
             if current_position == position:
                   self.insert_before_node(__lowerCAmelCase    ,    __lowerCAmelCase						)
                   return
             current_position += 1
             SCREAMING_SNAKE_CASE_     						=      node.next
       self.insert_after_node(self.tail    ,    __lowerCAmelCase						)



 def 				lowerCAmelCase_  (							self  :		Optional[Any]    ,    _lowerCAmelCase  :		int						):
       SCREAMING_SNAKE_CASE_     						=      self.head
       while node:
             if node.get_data() == item:
                   return node
             SCREAMING_SNAKE_CASE_     						=      node.get_next()
       raise Exception('Node not found'						)



 def 				lowerCAmelCase_  (							self  :		List[Any]    ,    _lowerCAmelCase  :		List[Any]						):
       if (node := self.get_node(__lowerCAmelCase						)) is not None:
             if node == self.head:
                   SCREAMING_SNAKE_CASE_     						=      self.head.get_next()

             if node == self.tail:
                   SCREAMING_SNAKE_CASE_     						=      self.tail.get_previous()

             self.remove_node_pointers(__lowerCAmelCase						)



 @staticmethod
 def 				lowerCAmelCase_  (							_lowerCAmelCase  :		Node						):
       if node.get_next():
             SCREAMING_SNAKE_CASE_     						=      node.previous

       if node.get_previous():
             SCREAMING_SNAKE_CASE_     						=      node.next

       SCREAMING_SNAKE_CASE_     						=      None
       SCREAMING_SNAKE_CASE_     						=      None




 def 				lowerCAmelCase_  (							self  :		Dict						):
       return self.head is None


def  UpperCAmelCase_							(				) ->			Optional[int]:
      pass


if __name__ == "__main__":
   import doctest

   doctest.testmod()









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 	lowerCamelCase_							(				_SCREAMING_SNAKE_CASE ):


 '''simple docstring'''







 lowercase_       =   ""
 lowercase_       =   "hf-legacy"  # "hf://"" is reserved for hffs



 def __init__(							self  :		Optional[int]    ,    _lowerCAmelCase  :		Optional[DatasetInfo] = None    ,    _lowerCAmelCase  :		Optional[str] = None    ,    **_lowerCAmelCase  :		int    ,    ):
       super().__init__(self    ,    **_lowerCAmelCase						)
       SCREAMING_SNAKE_CASE_     						=      repo_info
       SCREAMING_SNAKE_CASE_     						=      token
       SCREAMING_SNAKE_CASE_     						=      None



 def 				lowerCAmelCase_  (							self  :		Tuple						):
       if self.dir_cache is None:
             SCREAMING_SNAKE_CASE_     						=      {}
             for hf_file in self.repo_info.siblings:
                   # TODO(QL): add sizes
                   SCREAMING_SNAKE_CASE_     						=      {
                       '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 				lowerCAmelCase_  (							self  :		Optional[int]    ,    _lowerCAmelCase  :		str    ,    _lowerCAmelCase  :		str = "rb"    ,    **_lowerCAmelCase  :		Optional[Any]    ,    ):
       if not isinstance(self.repo_info    ,    _lowerCAmelCase						):
             raise NotImplementedError(F"Open is only implemented for dataset repositories, but got {self.repo_info}"						)
       SCREAMING_SNAKE_CASE_     						=      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 				lowerCAmelCase_  (							self  :		List[Any]    ,    _lowerCAmelCase  :		Any    ,    **_lowerCAmelCase  :		Dict						):
       self._get_dirs()
       SCREAMING_SNAKE_CASE_     						=      self._strip_protocol(_lowerCAmelCase						)
       if path in self.dir_cache:
             return self.dir_cache[path]
       else:
             raise FileNotFoundError(_lowerCAmelCase						)




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