code: function(ctx, noTransform) {
        ctx.save();
        this.transform(ctx);
  
        var groupScaleFactor = Math.max(this.scaleX, this.scaleY);
  
        for (var i = 0, len = this.objects.length, object; object = this.objects[i]; i++) {
          var originalScaleFactor = object.borderScaleFactor;
          object.borderScaleFactor = groupScaleFactor;
          object.render(ctx);
          object.borderScaleFactor = originalScaleFactor;
        }
        if (!noTransform && this.active) {
          this.drawBorders(ctx);
          this.hideCorners || this.drawCorners(ctx);
        }
        ctx.restore();
        this.setCoords();
      }
docs: Renders instance on a given context
  @method render
  @param {CanvasRenderingContext2D} ctx context to render instance on