confirmAlipayPayment  
  fun confirmAlipayPayment(confirmPaymentIntentParams: ConfirmPaymentIntentParams, authenticator: AlipayAuthenticator, stripeAccountId: String? = this.stripeAccountId, callback: ApiResultCallback<PaymentIntentResult>)
Confirm and authenticate a PaymentIntent using the Alipay SDK
Parameters
confirmPaymentIntentParams   
ConfirmPaymentIntentParams used to confirm the PaymentIntent
authenticator
a AlipayAuthenticator used to interface with the Alipay SDK
stripeAccountId  
Optional, the Connect account to associate with this request. By default, will use the Connect account that was used to instantiate the Stripe object, if specified.
callback
a ApiResultCallback to receive the result or error