Acquiadam service interface has undocumented public methods.

The Drupal\media_acquiadam\AcquiadamInterface has 2 methods in it. The "__call" method should not really be part of the interface, I would not think. I see that this "service" is being used as a sort of "pass through" for services exposed by the WebDam PHP API library service, but without documenting methods here, it is difficult to override/extend the Acquia service with any confidence. Can you build out this interface with methods we can expect to be supported in a BC way going forward with this module?