Is there a way to capture (and log) headers from http/2 response
trailers? The documentation doesn't mention trailers, and when I try to
reference headers which are present in the trailers (e.g.
"res.fhdr(grpc-status)"), it doesn't get captured.
At the end of the day I'm trying to log the grpc-status and grpc-message
headers from gRPC responses.