code: @XmlElementDecl(namespace = "http://www.w3.org/1998/Math/MathML", name = "product")
      public JAXBElement<ArithType> createProduct(ArithType value) {
          return new JAXBElement<ArithType>(_Product_QNAME, ArithType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link ArithType }{@code >}}