code: function cleanData(originalData) {
              return originalData.reduce((acc, d) => {
                      d.value = +d[valueLabel];
                      d.group = d[groupLabel];
                      // for tooltip
                      d.topicName = getGroup(d);
                      d.name = d[nameLabel];
  
                      return [...acc, d];
                  }, []);
          }
docs: Cleaning data casting the values, groups, topic names and names to the proper type while keeping
  the rest of properties on the data
  @param  {GroupedBarChartData} originalData   Raw data from the container
  @return {GroupedBarChartData}                Parsed data with values and dates
  @private