How to pass parameter to soap web service using webservice consumer in anypoint

Question

Can anyone give me an example how we can pass parameter to webservice if we are using ws:consumer in Anypoint Studio.

 <ws:consumer config-ref="Web_Service_Consumer1" operation="login" doc:name="Web Service Consumer"/>

i have to pass object parameter to login method of web service as we do it in java

LoginParam lp = new LoginParam("key","pwd");
LoginResponseParam lrp = port.login(lp);