How to use AsyncDataFetcher in dgs-framework

[SinanLai]

Hi, team
I'm a newer to the dgs-framework and GraphQL. I've read the api doc and some source code of the dgs-framework. It is clear that if you add the @DgsData annotation to a class and that class will be defined as a datafetcher. But I just want to use the graphql.schema.AsyncDataFetcher to make the datafetcher work concurrently. But I don't know how to wapper the class annotated with @DgsData with the AsyncDataFetcher. Can you provide some demos or suggestions? Thank you for your reply.