code: @Deprecated
    public static void reportException(final Throwable throwable, final String level, final String description, final Map<String, String> params) {
      ensureInit(new Runnable() {
        @Override
        public void run() {
          notifier.log(throwable, params != null ? Collections.<String, Object>unmodifiableMap(params) : null, description, Level.lookupByName(level));
        }
      });
    }
docs: report an exception to Rollbar, specifying the level, adding a custom description,
  and including extra data.
  
  @param throwable the exception that occurred.
  @param level the severity level.
  @param description the extra description.
  @param params the extra custom data.