code: @XmlElementDecl(namespace = "http://www.opengis.net/gml", name = "VerticalDatum", substitutionHeadNamespace = "http://www.opengis.net/gml", substitutionHeadName = "_Datum")
      public JAXBElement<VerticalDatumType> createVerticalDatum(VerticalDatumType value) {
          return new JAXBElement<VerticalDatumType>(_VerticalDatum_QNAME, VerticalDatumType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link VerticalDatumType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link VerticalDatumType }{@code >}