Interfaces with [QueryType] and CodeFirst

[Christine-Schneidenwind]

Hi,
I want to go with the code first approach to introduce interface as it here described:
https://chillicream.com/docs/hotchocolate/v13/defining-a-schema/interfaces#definition

public class QueryType : ObjectType<Query>
{
    protected override void Configure(IObjectTypeDescriptor<Query> descriptor)
    {
        descriptor
            .Field(f => f.GetMessages(default));
    }
}

But I have no query class Query, I am using the [QueryType] with .AddTypes() add the GraphQLServer

How can I add the InterfaceType with Code First without using Annotation-based approach?

I am using Hot Chocolate with Version 13.0.5