code: @XmlElementDecl(namespace = "http://www.opengis.net/citygml/appearance/2.0", name = "appearanceMember", substitutionHeadNamespace = "http://www.opengis.net/gml", substitutionHeadName = "featureMember")
      public JAXBElement<FeaturePropertyType> createAppearanceMember(FeaturePropertyType value) {
          return new JAXBElement<FeaturePropertyType>(_AppearanceMember_QNAME, FeaturePropertyType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link FeaturePropertyType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link FeaturePropertyType }{@code >}