code: function(point, domEvent) {
              var xAxisKey = this.processedData.xAxisKey,
                  xAxisType = this.processedData.xAxisType,
                  xFieldName = (this.mode === 'multiSeries') ? this.processedData.fieldNames[0] : xAxisKey,
                  yFieldName = (this.mode === 'multiSeries') ? this.processedData.fieldNames[1] : this.processedData.fieldNames[0],
                  event = {
                      fields: (this.mode === 'multiSeries') ? [xAxisKey, xFieldName, yFieldName] : [xFieldName, yFieldName],
                      data: {},
                      domEvent: domEvent
                  };
  
              event.data[xAxisKey] = (xAxisType == 'time') ? Splunk.util.getEpochTimeFromISO(point.series.name) : point.series.name;
              event.data[yFieldName] = point.rawY;
              if(xAxisType == "time") {
                  event.data._span = point._span;
              }
              event.data[xFieldName] = point.rawX;
              this.dispatchEvent('chartClicked', event);
          }
docs: override