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