code: @XmlElementDecl(namespace = "http://www.opengis.net/citygml/appearance/1.0", name = "appearance")
      public JAXBElement<AppearancePropertyType> createAppearance(AppearancePropertyType value) {
          return new JAXBElement<AppearancePropertyType>(_Appearance_QNAME, AppearancePropertyType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link AppearancePropertyType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link AppearancePropertyType }{@code >}