Use the fluent ReelSetBuilder: chain .reels(), .visibleRows(), .symbolSize(), register your symbols, then .build() returns a ReelSet (a PixiJS Container) that you add to the stage.
See it work
Use the fluent ReelSetBuilder: chain .reels(), .visibleRows(), .symbolSize(), register your symbols, then .build() returns a ReelSet (a PixiJS Container) that you add to the stage.