code: @Override
    public Object eGet(int featureID, boolean resolve, boolean coreType)
    {
      switch (featureID)
      {
        case SimpleAntlrPackage.OPTION_VALUE__KEY:
          return getKey();
        case SimpleAntlrPackage.OPTION_VALUE__VALUE:
          return getValue();
      }
      return super.eGet(featureID, resolve, coreType);
    }
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated