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