Access HTTP Trailer in Quarkus

I'm implementing a REST-API in Quarkus and want to stream the content.

I want the know when the tranpsort of the stream is finished. As the http-standard describes, http-trailer fields will be sent, when the transport of the message-body is finished. Therefore I want to access the http-trailer in quarkus (https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Trailer).

How do I access the http trailer information in quarkus?

Thanks for your support.

I've read the documentation - there is only some documentation about grpc, where you can use the http-trailers:

https://quarkus.io/guides/grpc-service-consumption

But I need the information in Quarkus REST.