




def 			a   (_lowerCAmelCase     ):
							return credit_card_number.startswith(('''34''', '''35''', '''37''', '''4''', '''5''', '''6''')     )

def 			a   (_lowerCAmelCase     ):
							SCREAMING_SNAKE_CASE_   	=    credit_card_number
							SCREAMING_SNAKE_CASE_   	=    0
							SCREAMING_SNAKE_CASE_   	=    len(_lowerCAmelCase     ) - 2
							for i in range(_lowerCAmelCase  ,    -1  ,    -2     ):
														#  double the value of every second digit
														SCREAMING_SNAKE_CASE_   	=    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 %= 1_0
																					digit += 1
														SCREAMING_SNAKE_CASE_   	=    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 % 1_0 == 0

def 			a   (_lowerCAmelCase     ):
							SCREAMING_SNAKE_CASE_   	=    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 1_3 <= len(_lowerCAmelCase     ) <= 1_6:
														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""")








from ...configuration_utils import PretrainedConfig
from ...utils import logging


__SCREAMING_SNAKE_CASE 						=logging.get_logger(__name__)

__SCREAMING_SNAKE_CASE 						={
    """google/realm-cc-news-pretrained-embedder""": (
        """https://huggingface.co/google/realm-cc-news-pretrained-embedder/resolve/main/config.json"""
    ),
    """google/realm-cc-news-pretrained-encoder""": (
        """https://huggingface.co/google/realm-cc-news-pretrained-encoder/resolve/main/config.json"""
    ),
    """google/realm-cc-news-pretrained-scorer""": (
        """https://huggingface.co/google/realm-cc-news-pretrained-scorer/resolve/main/config.json"""
    ),
    """google/realm-cc-news-pretrained-openqa""": (
        """https://huggingface.co/google/realm-cc-news-pretrained-openqa/aresolve/main/config.json"""
    ),
    """google/realm-orqa-nq-openqa""": """https://huggingface.co/google/realm-orqa-nq-openqa/resolve/main/config.json""",
    """google/realm-orqa-nq-reader""": """https://huggingface.co/google/realm-orqa-nq-reader/resolve/main/config.json""",
    """google/realm-orqa-wq-openqa""": """https://huggingface.co/google/realm-orqa-wq-openqa/resolve/main/config.json""",
    """google/realm-orqa-wq-reader""": """https://huggingface.co/google/realm-orqa-wq-reader/resolve/main/config.json""",
    # See all REALM models at https://huggingface.co/models?filter=realm
}






class  __magic_name__						(  __UpperCAmelCase):
				'''simple docstring'''







				SCREAMING_SNAKE_CASE__					:							int	      =					"realm"


				def __init__(							self:   Tuple		,					_lowerCamelCase:   Union[str, Any]=3_05_22		,					_lowerCamelCase:   Tuple=7_68		,					_lowerCamelCase:   str=1_28		,					_lowerCamelCase:   str=12		,					_lowerCamelCase:   int=12		,					_lowerCamelCase:   Union[str, Any]=8		,					_lowerCamelCase:   Optional[Any]=30_72		,					_lowerCamelCase:   str="gelu_new"		,					_lowerCamelCase:   str=0.1		,					_lowerCamelCase:   Union[str, Any]=0.1		,					_lowerCamelCase:   Optional[int]=5_12		,					_lowerCamelCase:   Union[str, Any]=2		,					_lowerCamelCase:   int=0.02		,					_lowerCamelCase:   Tuple=1E-12		,					_lowerCamelCase:   List[Any]=2_56		,					_lowerCamelCase:   Any=10		,					_lowerCamelCase:   Optional[Any]=1E-3		,					_lowerCamelCase:   Any=5		,					_lowerCamelCase:   List[str]=3_20		,					_lowerCamelCase:   List[str]=13_35_37_18		,					_lowerCamelCase:   str=50_00		,					_lowerCamelCase:   str=1		,					_lowerCamelCase:   str=0		,					_lowerCamelCase:   Dict=2		,					**_lowerCamelCase:   Tuple		,					):
											super().__init__(pad_token_id=_lowerCamelCase		,					bos_token_id=_lowerCamelCase		,					eos_token_id=_lowerCamelCase		,					**_lowerCamelCase		)

											# Common config
											SCREAMING_SNAKE_CASE_   	=    vocab_size
											SCREAMING_SNAKE_CASE_   	=    max_position_embeddings
											SCREAMING_SNAKE_CASE_   	=    hidden_size
											SCREAMING_SNAKE_CASE_   	=    retriever_proj_size
											SCREAMING_SNAKE_CASE_   	=    num_hidden_layers
											SCREAMING_SNAKE_CASE_   	=    num_attention_heads
											SCREAMING_SNAKE_CASE_   	=    num_candidates
											SCREAMING_SNAKE_CASE_   	=    intermediate_size
											SCREAMING_SNAKE_CASE_   	=    hidden_act
											SCREAMING_SNAKE_CASE_   	=    hidden_dropout_prob
											SCREAMING_SNAKE_CASE_   	=    attention_probs_dropout_prob
											SCREAMING_SNAKE_CASE_   	=    initializer_range
											SCREAMING_SNAKE_CASE_   	=    type_vocab_size
											SCREAMING_SNAKE_CASE_   	=    layer_norm_eps

											# Reader config
											SCREAMING_SNAKE_CASE_   	=    span_hidden_size
											SCREAMING_SNAKE_CASE_   	=    max_span_width
											SCREAMING_SNAKE_CASE_   	=    reader_layer_norm_eps
											SCREAMING_SNAKE_CASE_   	=    reader_beam_size
											SCREAMING_SNAKE_CASE_   	=    reader_seq_len

											# Retrieval config
											SCREAMING_SNAKE_CASE_   	=    num_block_records
											SCREAMING_SNAKE_CASE_   	=    searcher_beam_size


