code: public AbstractChart<T, S> addSeries(Serie... series) {
  		Collection<Serie> chartSeries = getSeries();
  		if (chartSeries == null) {
  			chartSeries = new ArrayList<Serie>();
  		}
  		for (int i = series.length - 1; i >= 0; i--) {
  			chartSeries.add(series[i]);
  		}
  		return this;
  
  	}
docs: Add a collection of series
  
  @param series Add series of chart
  @return AbstractChart