code: function statsTimer(stat_name, data_start) {
          var timer_started = new Date();
  
          var timerStop = function timerStop(data_end) {
              var time = (new Date()) - timer_started;
              var data = shallowMergeObjects(data_start, data_end);
  
              global.modules.emit('stat timer', {name: stat_name, time: time, data: data});
          };
  
          return {
              stop: timerStop
          };
      }
docs: Send a timer value to the stats
  
  Usage:
  var timer = Stats.startTimer('stat_name', {some_data: 'value'});
  // Do stuff
  timer.stop({other_data: 'value'});
  
  The object passed into .startTimer() and .stop(); are optional. If
  given they will be shallow merged with .stop() overridding .startTimer()