docs: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case BpsimPackage.BP_SIM_DATA_TYPE__GROUP:
  				return group != null && !group.isEmpty();
  			case BpsimPackage.BP_SIM_DATA_TYPE__SCENARIO:
  				return !getScenario().isEmpty();
  		}
  		return super.eIsSet(featureID);
  	}