Registering a custom function to be invoked by webservice

[Guido1982]

Hm. It seems if I create a new webservice operation I can pass its name here and the params with it, and if I'm not mistaken I need to name the function the same as the handler_method in the vtiger_webservice_operations table. But I'm not sure how my $params from the doInvoke method will end up in my custom function and what the prescribed way is to register this new operation.