checkout
fun checkout(paymentMethod: PaymentMethod, paymentConsentId: String?, cvc: String?, additionalInfo: Map<String, String>? = null, flow: AirwallexPaymentRequestFlow? = null): LiveData<AirwallexPaymentStatus>
suspend fun checkout(paymentMethod: PaymentMethod, paymentConsentId: String?, cvc: String, flow: AirwallexPaymentRequestFlow = AirwallexPaymentRequestFlow.IN_APP): AirwallexPaymentStatus
suspend fun checkout(paymentMethod: PaymentMethod, additionalInfo: Map<String, String>? = null, flow: AirwallexPaymentRequestFlow? = null): AirwallexPaymentStatus