docs: public void send(Event event) {
      HttpPost request = new HttpPost(MetricsUtils.GA_ENDPOINT_URL);
      request.setEntity(MetricsUtils.buildPostBody(event, analyticsId, random));
      client.execute(request, new FutureCallback<HttpResponse>() {
        @Override
        public void completed(HttpResponse result) {
          try {
            // Let BasicResponseHandler do the work of checking the status
            // code. The actual response body is irrelevant.
            RESPONSE_HANDLER.handleResponse(result);
          } catch (IOException e) {
            // For our purposes, this is exactly identical to a failure.
            failed(e);
          }
        }
  
        @Override
        public void failed(Exception ex) {
          // Can't really do anything but log the problem.
          LOGGER.warning("Problem sending request to server: " + ex);
        }
  
        @Override
        public void cancelled() {
          LOGGER.warning("Metrics-reporting HTTP request was cancelled.");
        }
      });
    }