Tokenization parameters that the integrator passes to tokenize the credit card that the user selects.

In order to configure gateway tokenization, set the tokenization type to WalletConstants.PAYMENT_METHOD_TOKENIZATION_TYPE_PAYMENT_GATEWAY and pass gateway specific parameters as key/value pairs by calling PaymentMethodTokenizationParameters.Builder.addParameter(String, String). When using gateway tokenization, the parameters must include a parameter with name "gateway" and value set to one of the supported gateways.

Note: parameters will be validated and error code WalletConstants.ERROR_CODE_INVALID_PARAMETERS will be returned if they happen to be invalid e.g. missing required parameter for a gateway or unexpected parameter is used.

An example of a tokenization configuration:

 PaymentMethodTokenizationParameters parameters = PaymentMethodTokenizationParameters.newBuilder()
     .setPaymentMethodTokenizationType(WalletConstants.PAYMENT_GATEWAY)
     .addParameter("gateway", "example")
     .addParameter("gatewayMerchantId", "exampleGatewayMerchantId")
     .build();