I am trying to programmatically add a parent interface to a LabVIEW class in LabView 2021. The LabVIEW help leads to be believe that I should be able to do this using the Add Parent Interface method (one of the LVClassLibrary Methods) using an invoke node. I get a reference to the class and pass that to an invoke node, but the Add Parent Interface method doesn't show up on the invoke node. What am I doing wrong? Is this the wrong way to get the class reference? See the attached image.