docs: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case XtextPackage.ENUM_LITERAL_DECLARATION__ENUM_LITERAL:
  				return enumLiteral != null;
  			case XtextPackage.ENUM_LITERAL_DECLARATION__LITERAL:
  				return literal != null;
  		}
  		return super.eIsSet(featureID);
  	}