docs: protected boolean sendProcessedTemplate(
              Request.In event, IOSubchannel channel, String path) {
          try {
              // Get template (no need to continue if this fails).
              Template tpl = freemarkerConfig().getTemplate(path);
              return sendProcessedTemplate(event, channel, tpl);
          } catch (IOException e) {
              fire(new Error(event, e), channel);
              return false;
          }
      }