ChartSeriesRendererFactory<T, D>  typedef 
 
        ChartSeriesRendererFactory<T, D> =
     ChartSeriesRenderer<T, D>  Function(ChartSeries<T, D>  series)
     
    
Custom renderer for series
Implementation
typedef ChartSeriesRendererFactory<T, D> = ChartSeriesRenderer<T, D> Function(
    ChartSeries<T, D> series);