'''simple docstring'''

def __a (	__lowerCamelCase			:						str				)	->							bool:
      '''simple docstring'''


      return credit_card_number.startswith(("34", "35", "37", "4", "5", "6")				)


def __a (	__lowerCamelCase			:						str				)	->							bool:
      '''simple docstring'''


      lowercase_     =      credit_card_number
      lowercase_     =      0
      lowercase_     =      len(__lowerCamelCase				) - 2
      for i in range(__lowerCamelCase ,		-1 ,		-2				):
            #  double the value of every second digit
            lowercase_     =      int(cc_number[i]				)
            digit *= 2
            # If doubling of a number results in a two digit number
            # i.e greater than 9(e.g., 6 × 2 = 12),
            # then add the digits of the product (e.g., 12: 1 + 2 = 3, 15: 1 + 5 = 6),
            # to get a single digit number.
            if digit > 9:
                  digit %= 10
                  digit += 1
            lowercase_     =      cc_number[:i] + str(__lowerCamelCase				) + cc_number[i + 1 :]
            total += digit

      # Sum up the remaining digits
      for i in range(len(__lowerCamelCase				) - 1 ,		-1 ,		-2				):
            total += int(cc_number[i]				)

      return total % 10 == 0


def __a (	__lowerCamelCase			:						str				)	->							bool:
      '''simple docstring'''


      lowercase_     =      f'{credit_card_number} is an invalid credit card number because'
      if not credit_card_number.isdigit():
            print(f'{error_message} it has nonnumerical characters.'				)
            return False

      if not 13 <= len(__lowerCamelCase				) <= 16:
            print(f'{error_message} of its length.'				)
            return False

      if not validate_initial_digits(__lowerCamelCase				):
            print(f'{error_message} of its first two digits.'				)
            return False

      if not luhn_validation(__lowerCamelCase				):
            print(f'{error_message} it fails the Luhn check.'				)
            return False

      print(f'{credit_card_number} is a valid credit card number.'				)
      return True


if __name__ == "__main__":
       import doctest

       doctest.testmod()
       validate_credit_card_number("4111111111111111")
       validate_credit_card_number("32323")







'''simple docstring'''

import logging
from dataclasses import dataclass, field
from pathlib import Path
from typing import Optional, Union

from .generation.configuration_utils import GenerationConfig
from .training_args import TrainingArguments
from .utils import add_start_docstrings


lowerCAmelCase_ : Dict						  =      logging.getLogger(__name__)





@dataclass
@add_start_docstrings(TrainingArguments.__doc__ )
class 							lowercase						(						__lowerCamelCase ):
   lowerCamelCase_    					=field(default=__lowerCamelCase ,				metadata={'help': 'Whether to use SortishSampler or not.'} )
   lowerCamelCase_    					=field(
       default=__lowerCamelCase ,				metadata={'help': 'Whether to use generate to calculate generative metrics (ROUGE, BLEU).'} )
   lowerCamelCase_    					=field(
       default=__lowerCamelCase ,				metadata={
           'help': (
               'The `max_length` to use on each evaluation loop when `predict_with_generate=True`. Will default '
               'to the `max_length` value of the model configuration.'
           )
       } ,				)
   lowerCamelCase_    					=field(
       default=__lowerCamelCase ,				metadata={
           'help': (
               'The `num_beams` to use on each evaluation loop when `predict_with_generate=True`. Will default '
               'to the `num_beams` value of the model configuration.'
           )
       } ,				)
   lowerCamelCase_    					=field(
       default=__lowerCamelCase ,				metadata={
           'help': 'Model id, file path or url pointing to a GenerationConfig json file, to use during prediction.'
       } ,				)


   def __UpperCAmelCase       (   self				:	Tuple)      ->					Optional[int]:
         lowercase_     =      super().to_dict()
         for k, v in d.items():
               if isinstance(__lowerCAmelCase   ,		__lowerCAmelCase):
                     lowercase_     =      v.to_dict()
         return d






