"""simple docstring"""




import itertools
import os
import re


_a				:		Optional[Any]	   =       re.compile(r'([A-Z]+)([A-Z][a-z])')
_a				:		Optional[int]	   =       re.compile(r'([a-z\d])([A-Z])')

_a				:		Optional[Any]	   =       re.compile(r'(?<!_)_(?!_)')
_a				:		Optional[Any]	   =       re.compile(r'(_{2,})')

_a				:		Dict	   =       R'^\w+(\.\w+)*$'

_a				:		Any	   =       R'<>:/\|?*'





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Any     )	->				int:
		_lowerCAmelCase						:	List[Any]        =					_uppercase_uppercase_re.sub(r"""\1_\2"""      ,lowercase__     )
		_lowerCAmelCase						:	Optional[Any]        =					_lowercase_uppercase_re.sub(r"""\1_\2"""      ,lowercase__     )
		return name.lower()





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	List[str]     )	->				Optional[int]:
		_lowerCAmelCase						:	Tuple        =					_single_underscore_re.split(lowercase__     )
		_lowerCAmelCase						:	Union[str, Any]        =					[_multiple_underscores_re.split(lowercase__     ) for n in name]
		return "".join(n.capitalize() for n in itertools.chain.from_iterable(lowercase__     ) if n != """"""     )





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Any     )	->				Union[str, Any]:
		if os.path.basename(lowercase__     ) != name:
				raise ValueError(f"Should be a dataset name, not a path: {name}"     )
		return camelcase_to_snakecase(lowercase__     )





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Any      ,_lowerCamelCase						:	Any     )	->				int:
		if os.path.basename(lowercase__     ) != name:
				raise ValueError(f"Should be a dataset name, not a path: {name}"     )
		if not re.match(_split_re      ,lowercase__     ):
				raise ValueError(f"Split name should match '{_split_re}'' but got '{split}'."     )
		return f"{filename_prefix_for_name(lowercase__     )}-{split}"





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Dict      ,_lowerCamelCase						:	Union[str, Any]      ,_lowerCamelCase						:	Optional[int]      ,_lowerCamelCase						:	Tuple=None     )	->				str:
		_lowerCAmelCase						:	List[Any]        =					filename_prefix_for_split(lowercase__      ,lowercase__     )
		if filetype_suffix:
				prefix += f".{filetype_suffix}"
		_lowerCAmelCase						:	Optional[Any]        =					os.path.join(lowercase__      ,lowercase__     )
		return f"{filepath}*"






def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	List[Any]      ,_lowerCamelCase						:	Optional[int]      ,_lowerCamelCase						:	Any      ,_lowerCamelCase						:	Any=None      ,_lowerCamelCase						:	Optional[int]=None     )	->				Optional[Any]:
		_lowerCAmelCase						:	List[str]        =					filename_prefix_for_split(lowercase__      ,lowercase__     )
		_lowerCAmelCase						:	Optional[int]        =					os.path.join(lowercase__      ,lowercase__     )

		if shard_lengths:
				_lowerCAmelCase						:	Optional[Any]        =					len(lowercase__     )
				_lowerCAmelCase						:	Tuple        =					[f"{prefix}-{shard_id:05d}-of-{num_shards:05d}" for shard_id in range(lowercase__     )]
				if filetype_suffix:
						_lowerCAmelCase						:	List[str]        =					[filename + f".{filetype_suffix}" for filename in filenames]
				return filenames
		else:
				_lowerCAmelCase						:	Optional[int]        =					prefix
				if filetype_suffix:
						filename += f".{filetype_suffix}"
				return [filename]





"""simple docstring"""




from __future__ import annotations





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	list     )	->				float:
  if not nums:
    raise ValueError("""List is empty"""     )
  return sum(_lowerCamelCase     ) / len(_lowerCamelCase     )


if __name__ == "__main__":
     import doctest

     doctest.testmod()




