code: function($super, axis, formatter, chart) {
              $super(axis, formatter, chart);
              var fontSize = 11,
                  tickLabelPadding = 2;
  
              if(this.isVertical) {
                  this.checkFirstLabelFit(axis, formatter, chart, fontSize);
              }
              else {
                  this.checkLastLabelFit(axis, formatter, chart, fontSize);
              }
          }
docs: override