}, tab: function(t3) {
            var e2, n3;
            return ((e2 = this.responder) != null ? e2.canDecreaseNestingLevel() : void 0) ? ((n3 = this.responder) != null && n3.decreaseNestingLevel(), this.requestRender(), t3.preventDefault()) : void 0;
          }, left: function(t3) {