- canMakePayment
- startChinaUnionPay
- startPay
- commitPaymentMethodChange
- commitShippingMethodChange
- commitShippingContactChange
- commitAuthorizedResult
- addButton
- removeButton
- onChinaUnionPayFinish
- onPaymentMethodChange
- onShippingContactChange
- onShippingMethodChange
- onPaymentAuthorized
- onCommitError
- onPayFinish
- onButtonClick