makeDefaultRenderer method
Uses SankeyRenderer as the default renderer.
Implementation
@override
SeriesRenderer<D> makeDefaultRenderer() {
  return SankeyRenderer<D>()..rendererId = SeriesRenderer.defaultRendererId;
}Uses SankeyRenderer as the default renderer.
@override
SeriesRenderer<D> makeDefaultRenderer() {
  return SankeyRenderer<D>()..rendererId = SeriesRenderer.defaultRendererId;
}