code: function() {
          this._setTimeRangeTo(this._jut_time_bounds, this._juttleNow);
  
          if (this._hasReceivedData && this.contextChart) {
              $(this.sinkBodyEl).append(this.contextChart.el);
              this.chart.toggleAnimations(false);
          }
      }
docs: gets called when a stream finishes