@Override
    public Flux<HelloReply> bidiHello(Flux<HelloRequest> request) {
        return request.map(it -> buildReply(toMessage(it.getName())));
    }
Sends a {@link HelloReply} when each {@link HelloRequest} is received. The response will be completed
when the request is completed.
examples/grpc-reactor/src/main/java/example/armeria/grpc/reactor/HelloServiceImpl.java