class CollectionMultipartFormDataMessageBodyWriter implements MessageBodyWriter<Collection<OutputItem>> {

    @Override
    public long getSize(Collection<OutputItem> items, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return -1;
    }

    public  CollectionMultipartFormDataMessageBodyWriter(@Context Providers providers);
      CollectionMultipartFormDataMessageBodyWriter(MultipartFormDataWriter multipartFormDataWriter);

}