expiration
The expiration date of the card in 'MM/YY' format.
Throws
if the JSON field has an unexpected type or is unexpectedly missing or null (e.g. if the server responded with an unexpected value).
The expiration date of the card in 'MM/YY' format.
if the JSON field has an unexpected type or is unexpectedly missing or null (e.g. if the server responded with an unexpected value).