PONativeAlternativePaymentMethod   
  constructor(state: PONativeAlternativePaymentMethodState, parameterDefinitions: List<PONativeAlternativePaymentMethodParameter>?, parameterValues: PONativeAlternativePaymentMethodParameterValues?)
Parameters
state
Current state of payment.
parameterDefinitions 
Contains details about the additional information you need to collect from customer before creating the payment request.
parameterValues 
Additional information about the payment step.