code: @Override
      public String serialize(final FedoraEvent evt) {
          try {
              final Model model = EventSerializer.toModel(evt);
              final ByteArrayOutputStream out = new ByteArrayOutputStream();
              model.write(out, "TTL");
              return out.toString("UTF-8");
          } catch (final UnsupportedEncodingException ex) {
              throw new RepositoryRuntimeException(ex);
          }
      }
docs: Serialize a FedoraEvent in RDF using Turtle syntax
  @param evt the Fedora event
  @return a string of RDF, using Turtle syntax