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r r Fr r )r r r r r s r �_isin_checksumr# " s� � ��J�E�3��R�y�y� � �� �#�J�� ��8�8��S���S�1�W�W��a�&�&�3�s�8�8�#�C�C�
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Checks if the value is a valid [CUSIP][1].
[1]: https://en.wikipedia.org/wiki/CUSIP
Examples:
>>> cusip('037833DP2')
True
>>> cusip('037833DP3')
ValidationFailure(func=cusip, ...)
Args:
value: CUSIP string to validate.
Returns:
(Literal[True]): If `value` is a valid CUSIP string.
(ValidationError): If `value` is an invalid CUSIP string.
r )�lenr �r s r r r 6 s! � �( �u�:�:��?� 5��u� 5� 5�5r c �F � t | � � dk ot | � � S )a� Return whether or not given value is a valid ISIN.
Checks if the value is a valid [ISIN][1].
[1]: https://en.wikipedia.org/wiki/International_Securities_Identification_Number
Examples:
>>> isin('037833DP2')
True
>>> isin('037833DP3')
ValidationFailure(func=isin, ...)
Args:
value: ISIN string to validate.
Returns:
(Literal[True]): If `value` is a valid ISIN string.
(ValidationError): If `value` is an invalid ISIN string.
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Checks if the value is a valid [SEDOL][1].
[1]: https://en.wikipedia.org/wiki/SEDOL
Examples:
>>> sedol('2936921')
True
>>> sedol('29A6922')
ValidationFailure(func=sedol, ...)
Args:
value: SEDOL string to validate.
Returns:
(Literal[True]): If `value` is a valid SEDOL string.
(ValidationError): If `value` is an invalid SEDOL string.
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