

'''simple docstring'''




from typing import Literal

_a			:	List[str]								=  'ABCDEFGHIJKLMNOPQRSTUVWXYZ'


def  lowerCamelCase__						(  SCREAMING_SNAKE_CASE :				str    ,				SCREAMING_SNAKE_CASE :				str    ,				SCREAMING_SNAKE_CASE :				Literal["encrypt", "decrypt"]  ):
  UpperCAmelCase  							=		LETTERS if mode == 'decrypt' else key
  UpperCAmelCase  							=		key if mode == 'decrypt' else LETTERS
  UpperCAmelCase  							=		''
  # loop through each symbol in the message
  for symbol in message:
    if symbol.upper() in chars_a:
      # encrypt/decrypt the symbol
      UpperCAmelCase  							=		chars_a.find(symbol.upper()  )
      if symbol.isupper():
        translated += chars_b[sym_index].upper()
      else:
        translated += chars_b[sym_index].lower()
    else:
      # symbol is not in LETTERS, just add it
      translated += symbol
  return translated


def  lowerCamelCase__						(  SCREAMING_SNAKE_CASE :				str    ,				SCREAMING_SNAKE_CASE :				str  ):
  return translate_message(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				'encrypt'  )


def  lowerCamelCase__						(  SCREAMING_SNAKE_CASE :				str    ,				SCREAMING_SNAKE_CASE :				str  ):
  return translate_message(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				'decrypt'  )


def  lowerCamelCase__						(  ):
  UpperCAmelCase  							=		'Hello World'
  UpperCAmelCase  							=		'QWERTYUIOPASDFGHJKLZXCVBNM'
  UpperCAmelCase  							=		'decrypt'  # set to 'encrypt' or 'decrypt'

  if mode == "encrypt":
    UpperCAmelCase  							=		encrypt_message(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE  )
  elif mode == "decrypt":
    UpperCAmelCase  							=		decrypt_message(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE  )
  print(f'''Using the key {key}, the {mode}ed message is: {translated}'''  )


if __name__ == "__main__":
    import doctest

    doctest.testmod()
    main()





'''simple docstring'''




from typing import TypeVar

from .arrow_dataset import Dataset, _split_by_node_map_style_dataset
from .iterable_dataset import IterableDataset, _split_by_node_iterable_dataset


_a			:	Optional[int]								=  TypeVar('DatasetType', Dataset, IterableDataset)


def  lowerCamelCase__						(  SCREAMING_SNAKE_CASE :				DatasetType    ,				SCREAMING_SNAKE_CASE :				int    ,				SCREAMING_SNAKE_CASE :				int  ):
  if isinstance(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE  ):
    return _split_by_node_map_style_dataset(SCREAMING_SNAKE_CASE    ,				rank=SCREAMING_SNAKE_CASE    ,				world_size=SCREAMING_SNAKE_CASE  )
  else:
    return _split_by_node_iterable_dataset(SCREAMING_SNAKE_CASE    ,				rank=SCREAMING_SNAKE_CASE    ,				world_size=SCREAMING_SNAKE_CASE  )


