






"""simple docstring"""



from __future__ import annotations

from collections.abc import Iterator





class 					_UpperCAmelCase       :




					def __init__(				self     :						Any    ,						A     :						int   )  ->  None:
							lowercase_ : List[str]							       =   value
							lowercase_ : Node | None							       =   None
							lowercase_ : Node | None							       =   None





class 					_UpperCAmelCase       :




					def __init__(				self     :						Optional[int]    ,						A     :						Node   )  ->  None:
							lowercase_ : Optional[Any]							       =   tree




					def   A  (				self     :						Any    ,						A     :						Node | None   )  ->  int:
							if node is None:
									return 0
							return node.value + (
							    self.depth_first_search(node.left   ) + self.depth_first_search(node.right   )
							)






					def __iter__(				self     :						int   )  ->  Iterator[int]:
							yield self.depth_first_search(self.tree   )


if __name__ == "__main__":
						import doctest

						doctest.testmod()











"""simple docstring"""



from typing import Optional
from urllib.parse import quote

import huggingface_hub as hfh
from packaging import version



def 						lowercase    (				__snake_case				: str		,					__snake_case				: str		,					__snake_case				: Optional[str] = None	):
		if version.parse(hfh.__version__	).release < version.parse('''0.11.0'''	).release:
				# old versions of hfh don't url-encode the file path
				lowercase_ : Union[str, Any]							       =   quote(__snake_case	)
		return hfh.hf_hub_url(__snake_case		,					__snake_case		,					repo_type='''dataset'''		,					revision=__snake_case	)



