docs: @Override
  	public void eUnset(int featureID) {
  		switch (featureID) {
  			case XtextPackage.NAMED_ARGUMENT__PARAMETER:
  				setParameter((Parameter)null);
  				return;
  			case XtextPackage.NAMED_ARGUMENT__VALUE:
  				setValue((Condition)null);
  				return;
  			case XtextPackage.NAMED_ARGUMENT__CALLED_BY_NAME:
  				setCalledByName(CALLED_BY_NAME_EDEFAULT);
  				return;
  		}
  		super.eUnset(featureID);
  	}