docs: function() {
        this.updateBounds();
        var maxTimestamp = this.bounds.max;
        for (var sI = 0; sI < this.slices.length; sI++) {
          var slice = this.slices[sI];
          if (slice.didNotFinish)
            slice.duration = maxTimestamp - slice.start;
        }
        this.openPartialSlices_ = [];
      }