@Override
 protected void onCancelled() {
   super.onCancelled();
   responder.alarmCancelled();
 }
 @Override
 protected void onPostExecute(Void trends) {
   super.onPostExecute(trends);
   responder.alarmLoaded(trends);
 }
 @Override
 protected void onPreExecute() {
   super.onPreExecute();
   responder.alarmLoading();
 }