Can't find PayPal SetExpressCheckout Method

Trying to implement PayPal's Express Checkout using SOAP. I've imported the .wsdl listed on their site. Documentation says to call the SetExpressCheckout Method, however I can't find that anywhere. I've check the Reference.cs but don't see it there either. I've looked in all the following classes with near matching names but no dice.

    SetExpressCheckoutRequest aaa= new SetExpressCheckoutRequest();
    SetExpressCheckoutRequestType bbb = new SetExpressCheckoutRequestType();
    SetExpressCheckoutReq ccc= new SetExpressCheckoutReq();
    SetExpressCheckoutResponse ddd = new SetExpressCheckoutResponse();
    SetExpressCheckoutResponseType eee = new SetExpressCheckoutResponseType();
    GetExpressCheckoutDetailsRequestType fff  = new GetExpressCheckoutDetailsRequestType();

Under what class does this exist?

wsdl version="124.0"
https://www.sandbox.paypal.com/wsdl/PayPalSvc.wsdl

Thanks in advance

Solution

Disclaimer - haven't used the Paypal SOAP API for quite some time

Just did a wsdl to generate proxy classes on that resource and can see: PayPalAPIAASoapBinding has a method SetExpressCheckout

that expects a SetExpressCheckoutReq parameter, and will return
SetExpressCheckoutResponseType containg the token

Hth...