use output.start, output.end params to rename stack output
use output.start, output.end params to rename stack output

uwdata/vega-lite,uwdata/vega-lite,ellisonbg/vega-lite,uwdata/vega-lite,ellisonbg/vega-lite,vega/vega-lite,uwdata/vega-lite,ellisonbg/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite,vega/vega-lite,vega/vega-lite