





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(						__UpperCAmelCase ):
     __A	  =       ""
     __A	  =       "hf-legacy"  # "hf://"" is reserved for hffs

     def __init__(      self,       A = None,       A = None,       **A,       ):





            """simple docstring"""

            super().__init__(self,       **A      )
            _UpperCamelCase              =						repo_info
            _UpperCamelCase              =						token
            _UpperCamelCase              =						None

     def 	_UpperCamelCase     (      self      ):





            """simple docstring"""

            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(A      ): {'''name''': str(A      ), '''size''': None, '''type''': '''directory'''}
                                  for d in list(PurePosixPath(hf_file.rfilename      ).parents      )[:-1]
                              }      )

     def 	_UpperCamelCase     (      self,       A,       A = "rb",       **A,       ):





            """simple docstring"""

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

     def 	_UpperCamelCase     (      self,       A,       **A      ):





            """simple docstring"""

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



     def 	_UpperCamelCase     (      self,       A,       A=False,       **A      ):





            """simple docstring"""

            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      )













from __future__ import annotations

lowercase    : int    	=  {
    """A""": ["""B""", """C""", """E"""],
    """B""": ["""A""", """D""", """E"""],
    """C""": ["""A""", """F""", """G"""],
    """D""": ["""B"""],
    """E""": ["""A""", """B""", """D"""],
    """F""": ["""C"""],
    """G""": ["""C"""],
}

class  __A:

     def __init__(      self,       A,       A      ):





            """simple docstring"""

            _UpperCamelCase              =						graph
            # mapping node to its parent in resulting breadth first tree
            _UpperCamelCase              =						{}
            _UpperCamelCase              =						source_vertex

     def 	_UpperCamelCase     (      self      ):





            """simple docstring"""

            _UpperCamelCase              =						{self.source_vertex}
            _UpperCamelCase              =						None
            _UpperCamelCase              =						[self.source_vertex]  # first in first out queue

            while queue:
                   _UpperCamelCase              =						queue.pop(0      )
                   for adjacent_vertex in self.graph[vertex]:
                          if adjacent_vertex not in visited:
                                 visited.add(A      )
                                 _UpperCamelCase              =						vertex
                                 queue.append(A      )



     def 	_UpperCamelCase     (      self,       A      ):





            """simple docstring"""

            if target_vertex == self.source_vertex:
                   return self.source_vertex

            _UpperCamelCase              =						self.parent.get(A      )
            if target_vertex_parent is None:
                   _UpperCamelCase              =						(
                       F'''No path from vertex: {self.source_vertex} to vertex: {target_vertex}'''
                   )
                   raise ValueError(A      )

            return self.shortest_path(A      ) + F'''->{target_vertex}'''


if __name__ == "__main__":
       lowercase    : Tuple    	=  Graph(graph, """G""")
       g.breath_first_search()
       print(g.shortest_path("""D"""))
       print(g.shortest_path("""G"""))
       print(g.shortest_path("""Foo"""))






