Return a filtered set of breakdown metadata for all metrics or KPIs Facts in the FactList, merging all metadata into a single BreakdownSet containing only the breakdowns named in the parameters. This is largely a convenience method that is most applicable when the FactList has been filtered to a single data point.
var breakdownByType = kpis.latest().get('issues').breakdown('Type');
The above example is equivalent to:
var breakdown = kpis.get('issues').filter(now).breakdown('Type');
var sameBreakdown = kpis.getLatest('issues').breakdown('Type');