Credit card number to be validated.
def get_card_number() -> str: ... def set_card_number(value: str) -> None: ...
card_number = property(get_card_number, set_card_number)
This property contains the customer's credit card number. A credit card number may be of any length, and may optionally include dashes or spaces. However, in practice the maximum length of the supported card_types is 19 characters (excluding whitespace), and the minimum length is 13 characters.