SelectionModel<D>.fromOther  constructor 
      
      SelectionModel<D>.fromOther (
    
- SelectionModel<D> other
Create a deep copy of the selection model.
Implementation
SelectionModel.fromOther(SelectionModel<D> other) {
  _selectedDatum = List.of(other._selectedDatum);
  _selectedSeries = List.of(other._selectedSeries);
}