@SuppressWarnings("unused")
    static <T> HttpResponse fromObject(ResponseHeaders headers, @Nullable T content,
                                       HttpHeaders trailers,
                                       Function<? super T, String> contentConverter) {
        requireNonNull(headers, "headers");
        requireNonNull(trailers, "trailers");
        requireNonNull(contentConverter, "contentConverter");
        return HttpResponse.of(sanitizeHeaders(headers), toHttpData(contentConverter, content), trailers);
    }
Returns a newly created JSON Lines response from the specified {@code content}.

<p>Note that this method is intentionally hidden from the public API for use only with
{@code ScalaPbResponseConverterFunction} and {@code ProtobufResponseConverterFunction}.
Because the {@code contentConverter} can easily produce a malformed string which violates the
<a href="https://jsonlines.org/">JSON format</a>.

@param headers the HTTP headers supposed to send
@param content the object supposed to send as contents
@param trailers the HTTP trailers
@param contentConverter the function which converts the content object into a UTF-8 JSON string.
core/src/main/java/com/linecorp/armeria/server/streaming/JsonLines.java