exp Month
Two digit (MM) expiry month. If neither exp_month nor exp_year is provided, an expiration date will be generated.
Throws
if the JSON field has an unexpected type (e.g. if the server responded with an unexpected value).
Two digit (MM) expiry month. If neither exp_month nor exp_year is provided, an expiration date will be generated.
if the JSON field has an unexpected type (e.g. if the server responded with an unexpected value).