code: function($super) {
              $super();
              $.extend(true, this.hcConfig, {
                  chart: {
                      type: 'pie'
                  },
                  xAxis: {
                      lineWidth: 0
                  },
                  yAxis: {
                      lineWidth: 0,
                      title: {
                          text: null
                      }
                  },
                  plotOptions: {
                      pie: {
                          dataLabels: {
                              hooks: {
                                  xPositionHook: this.labelXPositionHook.bind(this),
                                  connectorPositionHook: this.connectorPositionHook.bind(this)
                              }
                          },
                          hooks: {
                              plotRenderHook: this.plotRenderHook.bind(this),
                              beforeLabelRender: this.beforeLabelRenderHoook.bind(this)
                          }
                      }
                  }
              });
          }
docs: override