Is there a way to convert to code generate by protobuf oneof

[gpoulin]

Have you read the project readme?

• Yes, but it does not include related information regarding my question.
• Yes, but the steps described do not work.
• Yes, but I am having difficulty understanding it and want clarification.

Describe your question
I'm trying to convert a pure Go struct to a struct generated using protobuf that include oneof. The generated code for oneof create an un-exported interface ref with multiple struct that implement the interface. I didn't find a way to use goverter to convert such a field. I tried using a custom Mapping Method but since the type is not exported by protobuf, it's not possible to define such method. One workaround to work with oneof is to create a type alias in the same module as the generated code. However, goverter match type based on there name ref so an alias wouldn't work. Is there a way that I missed to convert a struct that contains such a oneof?

[jmattheis]

Could you provide a minimal example which goverter cannot convert (input, output struct & goverter converter interface)?