@Streaming(false)
        @Get("/bytesFuture")
        public CompletableFuture<byte[]> bytesFuture() {
            return UnmodifiableFuture.completedFuture("bytesFuture".getBytes());
        }
A mock service for testing {@link ByteArrayResponseConverterFunction}.
core/src/test/java/com/linecorp/armeria/internal/server/annotation/ResponseStreamingTest.java