





# Lint as: python3
import itertools
import os
import re


UpperCAmelCase						:   Union[str, Any]			  =     re.compile(r'''([A-Z]+)([A-Z][a-z])''')
UpperCAmelCase						:   Union[str, Any]			  =     re.compile(r'''([a-z\d])([A-Z])''')

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

UpperCAmelCase						:   Dict			  =     r'''^\w+(\.\w+)*$'''

UpperCAmelCase						:   List[Any]			  =     r'''<>:/\|?*'''







def  _SCREAMING_SNAKE_CASE				(   a  )      ->      str:
					__A	:						Dict       =				_uppercase_uppercase_re.sub(r'\1_\2'					,						a  )
					__A	:						Dict       =				_lowercase_uppercase_re.sub(r'\1_\2'					,						a  )
					return name.lower()







def  _SCREAMING_SNAKE_CASE				(   a  )      ->      Dict:
					__A	:						str       =				_single_underscore_re.split(a  )
					__A	:						Tuple       =				[_multiple_underscores_re.split(a  ) for n in name]
					return "".join(n.capitalize() for n in itertools.chain.from_iterable(a  ) if n != ''  )







def  _SCREAMING_SNAKE_CASE				(   a  )      ->      Dict:
					if os.path.basename(a  ) != name:
										raise ValueError(F"""Should be a dataset name, not a path: {name}"""  )
					return camelcase_to_snakecase(a  )







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







def  _SCREAMING_SNAKE_CASE				(   a					,						a					,						a					,						a=None  )      ->      Tuple:
					__A	:						int       =				filename_prefix_for_split(a					,						a  )
					if filetype_suffix:
										prefix += F""".{filetype_suffix}"""
					__A	:						str       =				os.path.join(a					,						a  )
					return F"""{filepath}*"""







def  _SCREAMING_SNAKE_CASE				(   a					,						a					,						a					,						a=None					,						a=None  )      ->      Optional[Any]:
					__A	:						Tuple       =				filename_prefix_for_split(a					,						a  )
					__A	:						Any       =				os.path.join(a					,						a  )

					if shard_lengths:
										__A	:						Optional[Any]       =				len(a  )
										__A	:						Union[str, Any]       =				[F"""{prefix}-{shard_id:05d}-of-{num_shards:05d}""" for shard_id in range(a  )]
										if filetype_suffix:
															__A	:						Optional[int]       =				[filename + F""".{filetype_suffix}""" for filename in filenames]
										return filenames
					else:
										__A	:						Optional[int]       =				prefix
										if filetype_suffix:
															filename += F""".{filetype_suffix}"""
										return [filename]











def  _SCREAMING_SNAKE_CASE				(   a  )      ->      str:
					if number > 0:
										raise ValueError('input must be a negative integer'  )
					__A	:						Optional[int]       =				len(bin(a  )[3:]  )
					__A	:						Dict       =				bin(abs(a  ) - (1 << binary_number_length)  )[3:]
					__A	:						int       =				(
					    (
					        '1'
					        + '0' * (binary_number_length - len(a  ))
					        + twos_complement_number
					    )
					    if number < 0
					    else '0'
					)
					return "0b" + twos_complement_number


if __name__ == "__main__":
				import doctest

				doctest.testmod()




