}}, u.prototype.keys = {ArrowLeft: function() {
            var t3, e2;
            return ((t3 = this.responder) != null ? t3.shouldManageMovingCursorInDirection("backward") : void 0) ? (this.event.preventDefault(), (e2 = this.responder) != null ? e2.moveCursorInDirection("backward") : void 0) : void 0;
          }, ArrowRight: function() {