@Streaming(true)
        @Produces(MediaTypeNames.APPLICATION_BINARY)
        @Get("/httpDataApplicationStream")
        public Stream<HttpData> httpDataApplicationStream() {
            return Stream.of(HttpData.ofUtf8("httpDataApplicationStream"));
        }
A mock service for testing {@link ByteArrayResponseConverterFunction}.
core/src/test/java/com/linecorp/armeria/internal/server/annotation/ResponseStreamingTest.java